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Finding the Fourth Proportional to 8,474.52, 12,711.60 and 2,927.69

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Solution

The fourth proportional to 8,474.52, 12,711.60 and 2,927.69 is: 4,391.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,474.52 : 12,711.60 = 2,927.69 : x
  2. Step 2: Convert to fraction form
    8,474.52/12,711.60 = 2,927.69/x
  3. Step 3: Cross multiply
    8,474.52x = 12,711.60 × 2,927.69
  4. Step 4: Simplify right side
    8,474.52x = 37,215,624.20
  5. Step 5: Solve for x
    x = 37,215,624.20/8,474.52
  6. Step 6: Final answer
    x = 4,391.47

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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.