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Class 10 > Learn Mathematics > What must be added to each of 7, 16, 43 and 79 so that...
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What must be added to each of 7, 16, 43 and 79 so that they become proportion? Find the number, which are in the proportion?

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Let us suppose, that we have to add 'x', to each of 17,16,43,and 79 so that they are in proportion Therefore, ( 7 + x ) : (16 + x ) : : ( 43 + x ) : ( 79 + x ), ==> ( 16 + x ) (43 + x ) = (7 + x ) ( 79 + x ) after simplification and solving for ' x' , we get x = 5 . Verification : After adding '5'...
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Let us suppose, that we have to add 'x', to each of 17,16,43,and 79 so that they are in proportion Therefore, ( 7 + x ) : (16 + x ) : : ( 43 + x ) : ( 79 + x ), ==> ( 16 + x ) (43 + x ) = (7 + x ) ( 79 + x ) after simplification and solving for ' x' , we get x = 5 . Verification : After adding '5' to the given numbers, we get 12, 21, 48, 84 which satisfy 12 : 21 : : 48 : 84 OR 4 : 7 : : 4 : 7 read less
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