Find the third proportional of 3 5 7

Din asked Mar 27, 2022

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Din asked Mar 27, 2022

by Din

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15 votes

Answer: Third proportion is 21/5.

Explanation:

Let the proportion be x

so,

3:5:x:7

3:5 = x:7

or, 3/5 = x/7

or, 21 = 5x

or, x = 21/5

DesertFox answered Apr 2, 2022

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