Question

the third porportional to 12 and 30 ​

Answer 1

Answer:

Third proportional to 12 and 30 = 75.

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Answer 2

Here,  we can say that the third proportional of two numbers a and b is  number c such that a : b = b : c

Let 'x' be the third proportion

So we can write it in the form

12 : 30 = 30 : x

Now, we will find the value of 'x'

We can write it in the form

$\frac{12}{30} =\frac{30}{x}$

$12x = 30\times 30\\12 x= 900\\x = \frac{900}{12}\\x = 75$

So, here the third porportional to 12 and 30 ​ will be 75.