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Finding the Fourth Proportional to 3,569.92, 5,355.24 and 1,229.61

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Solution

The fourth proportional to 3,569.92, 5,355.24 and 1,229.61 is: 1,844.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,569.92 : 5,355.24 = 1,229.61 : x
  2. Step 2: Convert to fraction form
    3,569.92/5,355.24 = 1,229.61/x
  3. Step 3: Cross multiply
    3,569.92x = 5,355.24 × 1,229.61
  4. Step 4: Simplify right side
    3,569.92x = 6,584,872.13
  5. Step 5: Solve for x
    x = 6,584,872.13/3,569.92
  6. Step 6: Final answer
    x = 1,844.54

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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.