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Finding the Fourth Proportional to 62,385.92, 86,101.35 and 39,717.67

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Solution

The fourth proportional to 62,385.92, 86,101.35 and 39,717.67 is: 54,815.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,385.92 : 86,101.35 = 39,717.67 : x
  2. Step 2: Convert to fraction form
    62,385.92/86,101.35 = 39,717.67/x
  3. Step 3: Cross multiply
    62,385.92x = 86,101.35 × 39,717.67
  4. Step 4: Simplify right side
    62,385.92x = 3,419,745,005.85
  5. Step 5: Solve for x
    x = 3,419,745,005.85/62,385.92
  6. Step 6: Final answer
    x = 54,815.97

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1.5x scale

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.