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Finding the Fourth Proportional to 8,169.32, 12,240.05 and 4,474.17

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Solution

The fourth proportional to 8,169.32, 12,240.05 and 4,474.17 is: 6,703.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.32 : 12,240.05 = 4,474.17 : x
  2. Step 2: Convert to fraction form
    8,169.32/12,240.05 = 4,474.17/x
  3. Step 3: Cross multiply
    8,169.32x = 12,240.05 × 4,474.17
  4. Step 4: Simplify right side
    8,169.32x = 54,764,042.14
  5. Step 5: Solve for x
    x = 54,764,042.14/8,169.32
  6. Step 6: Final answer
    x = 6,703.62

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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.