Question

the fourth proportion of 7,21 and 3​

Answer 1

Answer:

9

Step-by-step explanation:

Consider the Fourth proportion be x.

So,

7 : 21 : : 3 : x

Solve it.

7/21 = 3/x

1/3 = 3/x

x = 3×3

x = 9

The Fourth Proportion is 9.

Thanks!

Answer 2

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