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The ratio of the 2nd to 4th finger length predicts spatial ability in men.
  the relative magnitudes of two quantities — often expressed as a:b (which could also be expressed as the fraction a/b)
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ratio ratios
The ratio of a to b is a divided by b.  For example, the gross dependency ratio is the number of non-working age people to working age people. It can be expressed as a:b or as the fraction a/b.

Note that when a ratio is expressed as a decimal quotient (that is when the fraction’s division is done) and is multiplied by 100, it equals a as a percent of b.
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  • The ratio of the 2nd to 4th finger length predicts spatial ability in men.
  • Their profitablity ratios are good, but their liquidity ratios are of concern.
  • The ratio of width to height of typical computer displays is 4:3.
  • On his last day of school, his math teacher... taught ratios.
    Louis Sachar  --  Holes

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  • Everything pointed to Aris’s having come from another version of the Maze, set up in the same format except with the ratio of girls to boys being switched.
    James Dashner  --  The Scorch Trials
  • Add to that the fact that we’re losing Immunes left and right to who-knows-where, decreasing our ratio each and every day, and things were bound to reach a boiling point eventually.
    James Dashner  --  The Death Cure
  • Using the ratio of infected to clean here at the base, we estimate that one out of every three surviving human beings on Earth is one of them.
    Rick Yancey  --  The 5th Wave
  • Maybe it was lucky, then, that my terror-to-confidence ratio was at an all-time low.
    Ransom Riggs  --  Hollow City
  • However, to my surprise I observed that the density of caribou remains decreased in an almost geometric ratio to the distance from the cabin.
    Farley Mowat  --  Never Cry Wolf
  • The ratio of men to women in the University is about ten to one.
    Patrick Rothfuss  --  The Name of the Wind

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  • We haven’t run her diagnostics yet, but I think she’s going to have a pretty high ratio.
    Marissa Meyer  --  Cinder
  • They looked at me with faint distaste—or perhaps even incomprehension—no doubt weighing up my fat-to-muscle ratio and finding it wanting.
    Jojo Moyes  --  Me Before You
  • Five-to-one kill ratio.
    David Baldacci  --  Zero Day
  • It’s not that hard; you just need to know the ratios, and once you get those down you can play with it.
    Katja Millay  --  The Sea of Tranquility
  • With my first letter I was instantaneously transformed from a number on a teacher-ratio chart to a labor problem.
    Pat Conroy  --  The Water is Wide
  • I learned about veneers and gilding, what a mortise and tenon was, the difference between ebonized wood and true ebony, between Newport and Connecticut and Philadelphia crest rails, how the blocky design and close-cropped top of one Chippendale bureau rendered it inferior to another bracket-foot of the same vintage with its fluted quarter columns and what he liked to call the "exalted" proportions of the drawer ratio.
    Donna Tartt  --  The Goldfinch
  • Immigrants have been reduced to cost-benefit ratios.
    Sonia Nazario  --  Enrique’s Journey
  • It featured a sentence-to-corpse ratio of nearly 1:1, and I tore through it without ever looking up.
    John Green  --  The Fault in Our Stars
  • Its value and its civilization are in inverse ratio to that extortion.
    Ayn Rand  --  The Fountainhead
  • Mae watched them get into the great truck, watched it lumber off in low gear, and heard the shift up the whining gears to cruising ratio.
    John Steinbeck  --  The Grapes of Wrath
  • Blacks outnumbered whites by a ratio of more than ten to one.
    Malcolm Gladwell  --  Outliers
  • To keep the ratio the same.
    Toni Morrison  --  Song of Solomon
  • We don’t permit their magnesium-calcium ratio to fall below what it was at thirty.
    Aldous Huxley  --  Brave New World
  • She packs a 20:1 thrust/weight ratio; most jets run at 7:1.
    Dan Brown  --  Angels & Demons
  • He was the first to show that the human body is literally made of building blocks whose proportional ratios always equal PHI.
    Dan Brown  --  The Da Vinci Code
  • I must have had a pee ratio of three to one in Nam versus the amount of times I had peed in Harlem.
    Walter Dean Myers  --  Fallen Angels
  • Their meat has a ratio of about 14 omega-6 to 1 omega-3.
    Michael Pollan  --  The Omnivore’s Dilemma
  • This equation does not give us the value of the unknown factor but gives us a ratio between two unknowns.
    Leo Tolstoy  --  War and Peace
  • "I fear the ratio of the mass of propellant added compared to the mass of the empty rocket will be too small," he said.
    Homer Hickam  --  October Sky
  • Some balance wheel was misweighted, some gear out of ratio.
    John Steinbeck  --  East of Eden
  • Josie, who was presenting hers tomorrow, had polled her friends to see if there was a ratio between the number of hours you spent doing your homework and your grade point average.
    Jodi Picoult  --  Nineteen Minutes
  • He felt them cup the air, their aspect ratio dropping faster and faster.
    Frank Herbert  --  Dune
  • Anyone who looked more white folkish than herself was better than she was in her criteria, therefore it was right that they should be cruel to her at times, just as she was cruel to those more negroid than herself in direct ratio to their negroness.
    Zora Neale Hurston  --  Their Eyes Were Watching God
  • James asks, drawing ten hands out of the thirty attendees, a high ratio among the conscious.
    Ron Suskind  --  A Hope in the Unseen
    Michael Crichton  --  The Andromeda Strain
  • The stick still fell; as the progress of the horse slowed, the speed of the stick increased in exact ratio.
    William Faulkner  --  Light in August
  • He makes charts of Irish grammar, Irish history and algebra at home, hangs them on an easel and we have to chant our way through the cases, conjugations and declensions of Irish, famous names and battles, proportions, ratios, equations.
    Frank McCourt  --  Angela’s Ashes
  • The ratio of misery to pleasure was greater by an order of magnitude than any other mountain I’d been on; I quickly came to understand that climbing Everest was primarily about enduring pain.
    Jon Krakauer  --  Into Thin Air
  • Plus the ratio in the classes of professors to students is really good.
    Sarah Dessen  --  This Lullaby
  • Even with our high staff-to-pattent ratio, two-toones often meant restricted to the ward.
    Susanna Kaysen  --  Girl Interrupted
  • Would he attain his assigned kill-ratio of ten enemies before he was slaughtered?
    James Bradley  --  Flags of Our Fathers
  • Right now the ratio between income tax and total income for the state gives an index that—
    Robert Penn Warren  --  All the King’s Men
  • An outraged Mortenson offered to pay Ghulam’s salary, and hire two more teachers to reduce Khanday’s student-teacher ratio to a reasonable level.
    Greg Mortenson & David Oliver Relin  --  Three Cups of Tea
  • In my head, I was frantically trying to determine the ratios of positive emotion to negative emotion.
    Malcolm Gladwell  --  Blink
  • So it isn’t quite built on the ten–to–one ratio of your high–speed steamers; but its lines are sufficiently long, and their tapering gradual enough, so that the displaced water easily slips past and poses no obstacle to the ship’s movements.
    Jules Verne  --  Twenty Thousand Leagues Under the Sea
  • I’m prepared to hold that ratio until we’re relieved at 0800.
    Pat Frank  --  Alas, Babylon
  • In fact, the facility with which I shall arrive, or have arrived, at the solution of this mystery, is in the direct ratio of its apparent insolubility in the eyes of the police.
    Edgar Allan Poe  --  The Murders in the Rue Morgue
  • We have already noted Descartes’s affinity with Plato, who also observed that mathematics and numerical ratio give us more certainty than the evidence of our senses.
    Jostein Gaarder  --  Sophie’s World
  • Dunbar has actually developed an equation, which works for most primates, in which he plugs in what he calls the neocortex ratio of a particular species — the size of the neocortex relative to the size of the brain — and the equation spits out the expected maximum group size of the animal.
    Malcolm Gladwell  --  The Tipping Point
  • Yah-da, yah-da, yah-da, yah-da, yah, carburetor, gear ratio, compression, yah-da-yah, piston, plugs, intake, yah-da-yah, on and on and on.
    Robert M. Pirsig  --  Zen and the Art of Motorcycle Maintenance
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Associated words [difficulty]:   ratio [2] , ration [1]
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