Both Uses

proportion
in
Sweet Far Thing
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By late evening of my last night in London, my misery has reached operatic proportions.†
Chpt 1 *
In smaller script is a list of others who will exhibit at the hall, their names growing tinier in proportion to their importance.†
Chpt 2 *

Definitions:

(1) (proportion as in: the proportion of females)
relative amount, quantity, or collection
The exact meaning of this sense of proportion is subject to its context. For example:
- "The female proportion is 50%." -- percentage or share
- "The proportion of oil to vinegar." -- ratio (quantity of something relative to the quantity of something else)
- "In the survey, the female proportion said..." -- group
(2) (proportion as in: a problem of large proportion)
size or dimension
(3) (proportion as in: respond in proportion)
appropriate in size, amount, or degree
(4) (meaning too rare to warrant focus)