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Finding the Third Proportional to 717.50 and 1,073.75

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Solution

The third proportional to 717.50 and 1,073.75 is: 1,606.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    717.50 : 1,073.75 = 1,073.75 : x
  2. Step 2: Convert to fraction form
    717.50/1,073.75 = 1,073.75/x
  3. Step 3: Cross multiply
    717.50x = 1,073.75 × 1,073.75
  4. Step 4: Simplify right side
    717.50x = 1,152,939.06
  5. Step 5: Solve for x
    x = 1,152,939.06/717.50
  6. Step 6: Final answer
    x = 1,606.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.