Answer: The ratio of sides of two squares is 5: 3, the ratio of perimeters is 5×4:3×4 = 5:4, and the ratio of areas is 5×5:3×3 = 25:9.

From the above data, it can be concluded that the ratio of the sides of two squares is equal to the ratio of their perimeters, not equal to the ratio of their areas; The ratio of areas is equal to the ratio of the squares of their sides.

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