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Solving Proportions Using Cross Products

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This section covers how to solve proportions using cross products, illustrated with a practical example involving plant food and water. To mix the appropriate amount of nutrients for your plants, you need to maintain the ratio of plant food to water. The example provides a scenario where 3 tablespoons of plant food are mixed with 16 ounces of water. It calculates how many tablespoons are needed when using 80 ounces of water. This helps in understanding and applying the cross product method to solve similar problems.

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Solving Proportions Using Cross Products

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  1. Solving Proportions Using Cross Products Section 3.6

  2. The product of the numerator of one ratio and the denominator of the other ratio. Cross Product:

  3. Divide both sides by 25

  4. To feed your plants, you need to mix 3 tablespoons of plant food with 16 ounces of water. If it takes 80 ounces of water to feed all your plants, how many tablespoons of plant food are needed?

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