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Finding the Third Proportional to 18,909.38 and 41,281.13

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Solution

The third proportional to 18,909.38 and 41,281.13 is: 90,120.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,909.38 : 41,281.13 = 41,281.13 : x
  2. Step 2: Convert to fraction form
    18,909.38/41,281.13 = 41,281.13/x
  3. Step 3: Cross multiply
    18,909.38x = 41,281.13 × 41,281.13
  4. Step 4: Simplify right side
    18,909.38x = 1,704,131,281.27
  5. Step 5: Solve for x
    x = 1,704,131,281.27/18,909.38
  6. Step 6: Final answer
    x = 90,120.97

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.