Question

Find the third proportional to 1 km, 250 m and 500 g.
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Answer 1

Step-by-step explanation:

By letting the third proportional as x.

Answer 2

The third proportion be 125 g.

Step-by-step explanation:

To Find : The third proportional to 1 km, 250 m and 500 g ?

Solution :

Let the third proportion be 'x'.

According to question,

1 km, 250 m and 500 g, x g

i.e. 1 km : 250 m :: 500 g : x g

$\frac{1\ km}{250\ m}=\frac{500\ g}{x\ g}$

Convert km i into m for same unit,

$\frac{1000}{250}=\frac{500}{x}$

$x=\frac{500\times 250}{1000}$

$x=125$

Therefore, the third proportion be 125 g.

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Find the third proportional to 1 km,250 m and 500 g.

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