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Finding the Third Proportional to 589.50 and 868.13

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Solution

The third proportional to 589.50 and 868.13 is: 1,278.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.50 : 868.13 = 868.13 : x
  2. Step 2: Convert to fraction form
    589.50/868.13 = 868.13/x
  3. Step 3: Cross multiply
    589.50x = 868.13 × 868.13
  4. Step 4: Simplify right side
    589.50x = 753,641.02
  5. Step 5: Solve for x
    x = 753,641.02/589.50
  6. Step 6: Final answer
    x = 1,278.44

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.