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Finding the Third Proportional to 13,732.50 and 20,862

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Solution

The third proportional to 13,732.50 and 20,862 is: 31,692.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,732.50 : 20,862 = 20,862 : x
  2. Step 2: Convert to fraction form
    13,732.50/20,862 = 20,862/x
  3. Step 3: Cross multiply
    13,732.50x = 20,862 × 20,862
  4. Step 4: Simplify right side
    13,732.50x = 435,223,044
  5. Step 5: Solve for x
    x = 435,223,044/13,732.50
  6. Step 6: Final answer
    x = 31,692.92

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.