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The third proportional to 4 and 9 is:
Question

The third proportional to 4 and 9 is:

A.

81

B.

201420 \frac14​​

C.

36

D.

16

Correct option is B

Given:
Two numbers: 4 and 9

Formula Used:
If a:b = b:c, then c is the third proportional.

Solution:
4:9 = 9:c
4c = 9 * 9
4c = 81
c = 81 / 4 = 20 14\frac14​​

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