8 m : 21 m and ₹ 24 : ₹ 63 ratio are in proportion method
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Let a = 8m ,
b = 24m ,
c = ₹24 ,
d = ₹63 .
a/b = c/d ( cross multiplication )
8/21 = 24/63
= 8 × 63 = 21 × 24
= 504 = 504 . ( Equal )
Hence , They are proportional to each other .
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