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Finding the Third Proportional to 13,542 and 16,545.75

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Solution

The third proportional to 13,542 and 16,545.75 is: 20,215.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,542 : 16,545.75 = 16,545.75 : x
  2. Step 2: Convert to fraction form
    13,542/16,545.75 = 16,545.75/x
  3. Step 3: Cross multiply
    13,542x = 16,545.75 × 16,545.75
  4. Step 4: Simplify right side
    13,542x = 273,761,843.06
  5. Step 5: Solve for x
    x = 273,761,843.06/13,542
  6. Step 6: Final answer
    x = 20,215.76

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.