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Finding the Fourth Proportional to 3,447.73, 5,168.39 and 1,255.96

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Solution

The fourth proportional to 3,447.73, 5,168.39 and 1,255.96 is: 1,882.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,447.73 : 5,168.39 = 1,255.96 : x
  2. Step 2: Convert to fraction form
    3,447.73/5,168.39 = 1,255.96/x
  3. Step 3: Cross multiply
    3,447.73x = 5,168.39 × 1,255.96
  4. Step 4: Simplify right side
    3,447.73x = 6,491,291.10
  5. Step 5: Solve for x
    x = 6,491,291.10/3,447.73
  6. Step 6: Final answer
    x = 1,882.77

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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.