Ralph is 3 times as old as sara. in 6 years ralph will be only twice as old as sara will be then. find ralph’s age now. if x represents sara’s age now, which of the following expressions represents ralph’s age in six years?

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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