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Finding the Fourth Proportional to 3,644.92, 5,469.54 and 1,338.04

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Solution

The fourth proportional to 3,644.92, 5,469.54 and 1,338.04 is: 2,007.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,644.92 : 5,469.54 = 1,338.04 : x
  2. Step 2: Convert to fraction form
    3,644.92/5,469.54 = 1,338.04/x
  3. Step 3: Cross multiply
    3,644.92x = 5,469.54 × 1,338.04
  4. Step 4: Simplify right side
    3,644.92x = 7,318,463.30
  5. Step 5: Solve for x
    x = 7,318,463.30/3,644.92
  6. Step 6: Final answer
    x = 2,007.85

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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.