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Finding the Fourth Proportional to 8,396.56, 12,591.65 and 2,471.82

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Solution

The fourth proportional to 8,396.56, 12,591.65 and 2,471.82 is: 3,706.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,396.56 : 12,591.65 = 2,471.82 : x
  2. Step 2: Convert to fraction form
    8,396.56/12,591.65 = 2,471.82/x
  3. Step 3: Cross multiply
    8,396.56x = 12,591.65 × 2,471.82
  4. Step 4: Simplify right side
    8,396.56x = 31,124,251.26
  5. Step 5: Solve for x
    x = 31,124,251.26/8,396.56
  6. Step 6: Final answer
    x = 3,706.79

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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.