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Finding the Fourth Proportional to 62,740.40, 86,581.91 and 34,447.91

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Solution

The fourth proportional to 62,740.40, 86,581.91 and 34,447.91 is: 47,538.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,740.40 : 86,581.91 = 34,447.91 : x
  2. Step 2: Convert to fraction form
    62,740.40/86,581.91 = 34,447.91/x
  3. Step 3: Cross multiply
    62,740.40x = 86,581.91 × 34,447.91
  4. Step 4: Simplify right side
    62,740.40x = 2,982,565,843.31
  5. Step 5: Solve for x
    x = 2,982,565,843.31/62,740.40
  6. Step 6: Final answer
    x = 47,538.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.