When can we say that four quantities are in proportion?
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Step-by-step explanation:
Two ratios are equivalent, if the fractions corresponding to them are equivalent. Four quantities are said to be in proportion, if the ratio of the first and the second quantities is equal to the ratio of the third and the fourth quantities. The symbol '::' or '=' is used to equate the two ratios.
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Step-by-step explanation:
Four quantities are said to be in proportion, if the ratio of first and second quantities is equal to the ratio of third and fourth quantities. If two ratios are equal, then we say that they are in proportion and use the symbol ':: ' or '=' to equate the two ratios
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