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Finding the Fourth Proportional to 67,854.92, 93,639.87 and 39,566.08

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Solution

The fourth proportional to 67,854.92, 93,639.87 and 39,566.08 is: 54,601.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,854.92 : 93,639.87 = 39,566.08 : x
  2. Step 2: Convert to fraction form
    67,854.92/93,639.87 = 39,566.08/x
  3. Step 3: Cross multiply
    67,854.92x = 93,639.87 × 39,566.08
  4. Step 4: Simplify right side
    67,854.92x = 3,704,962,587.61
  5. Step 5: Solve for x
    x = 3,704,962,587.61/67,854.92
  6. Step 6: Final answer
    x = 54,601.24

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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.