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Question

Find the value of x in the given proportion:

24:x::18:45


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Solution

Step 1: To find the value of x when the given number are in proportion

As we know that any four numbers a,b,c and d are said to be in proportion if and only if

a:b::c:d

ab=cd

Step 2: Given four numbers in proportion 24:x::18:45

Find the ratio of first and second number and equate it to the ratio of third and fourth number i.e.

24x=1845

24×45=x×18

x=24×4518,divide by 6

x=4×453

x=4×15

x=60

Hence, the value of x is 60 when four numbers 24:x::18:45 are in proportion.


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