Question

find the fourth proportional to the number 5 and 7 and 30​

Answer 1

Answer:

Here is Your answer Buddy!!

Step-by-step explanation:

a : b = C : d

Therefore,

5 :7 = 30 : d

therefore,

5d = 30× 7

5d = 210

therefore

d = 210÷ 5

THEREFORE, d = 42......

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