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Finding the Third Proportional to 18,367.38 and 21,101.13

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Solution

The third proportional to 18,367.38 and 21,101.13 is: 24,241.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,367.38 : 21,101.13 = 21,101.13 : x
  2. Step 2: Convert to fraction form
    18,367.38/21,101.13 = 21,101.13/x
  3. Step 3: Cross multiply
    18,367.38x = 21,101.13 × 21,101.13
  4. Step 4: Simplify right side
    18,367.38x = 445,257,805.97
  5. Step 5: Solve for x
    x = 445,257,805.97/18,367.38
  6. Step 6: Final answer
    x = 24,241.77

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.