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Finding the Third Proportional to 13,881.38 and 20,332.69

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Solution

The third proportional to 13,881.38 and 20,332.69 is: 29,782.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,881.38 : 20,332.69 = 20,332.69 : x
  2. Step 2: Convert to fraction form
    13,881.38/20,332.69 = 20,332.69/x
  3. Step 3: Cross multiply
    13,881.38x = 20,332.69 × 20,332.69
  4. Step 4: Simplify right side
    13,881.38x = 413,418,180.97
  5. Step 5: Solve for x
    x = 413,418,180.97/13,881.38
  6. Step 6: Final answer
    x = 29,782.22

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.