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Finding the Fourth Proportional to 8,443.60, 12,654.87 and 4,059.88

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Solution

The fourth proportional to 8,443.60, 12,654.87 and 4,059.88 is: 6,084.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,443.60 : 12,654.87 = 4,059.88 : x
  2. Step 2: Convert to fraction form
    8,443.60/12,654.87 = 4,059.88/x
  3. Step 3: Cross multiply
    8,443.60x = 12,654.87 × 4,059.88
  4. Step 4: Simplify right side
    8,443.60x = 51,377,253.62
  5. Step 5: Solve for x
    x = 51,377,253.62/8,443.60
  6. Step 6: Final answer
    x = 6,084.76

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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.