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Finding the Fourth Proportional to 3,713.92, 5,120.49 and 2,652.96

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Solution

The fourth proportional to 3,713.92, 5,120.49 and 2,652.96 is: 3,657.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.92 : 5,120.49 = 2,652.96 : x
  2. Step 2: Convert to fraction form
    3,713.92/5,120.49 = 2,652.96/x
  3. Step 3: Cross multiply
    3,713.92x = 5,120.49 × 2,652.96
  4. Step 4: Simplify right side
    3,713.92x = 13,584,429.55
  5. Step 5: Solve for x
    x = 13,584,429.55/3,713.92
  6. Step 6: Final answer
    x = 3,657.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.