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Finding the Third Proportional to 585.50 and 913.75

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Solution

The third proportional to 585.50 and 913.75 is: 1,426.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    585.50 : 913.75 = 913.75 : x
  2. Step 2: Convert to fraction form
    585.50/913.75 = 913.75/x
  3. Step 3: Cross multiply
    585.50x = 913.75 × 913.75
  4. Step 4: Simplify right side
    585.50x = 834,939.06
  5. Step 5: Solve for x
    x = 834,939.06/585.50
  6. Step 6: Final answer
    x = 1,426.03

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.