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Finding the Fourth Proportional to 8,425.92, 12,641.22 and 3,497.88

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Solution

The fourth proportional to 8,425.92, 12,641.22 and 3,497.88 is: 5,247.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,425.92 : 12,641.22 = 3,497.88 : x
  2. Step 2: Convert to fraction form
    8,425.92/12,641.22 = 3,497.88/x
  3. Step 3: Cross multiply
    8,425.92x = 12,641.22 × 3,497.88
  4. Step 4: Simplify right side
    8,425.92x = 44,217,470.61
  5. Step 5: Solve for x
    x = 44,217,470.61/8,425.92
  6. Step 6: Final answer
    x = 5,247.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.