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Finding the Third Proportional to 19,338.75 and 31,843.13

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Solution

The third proportional to 19,338.75 and 31,843.13 is: 52,432.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,338.75 : 31,843.13 = 31,843.13 : x
  2. Step 2: Convert to fraction form
    19,338.75/31,843.13 = 31,843.13/x
  3. Step 3: Cross multiply
    19,338.75x = 31,843.13 × 31,843.13
  4. Step 4: Simplify right side
    19,338.75x = 1,013,984,609.77
  5. Step 5: Solve for x
    x = 1,013,984,609.77/19,338.75
  6. Step 6: Final answer
    x = 52,432.79

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.