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Finding the Fourth Proportional to 3,472.62, 5,212.45 and 3,079.87

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Solution

The fourth proportional to 3,472.62, 5,212.45 and 3,079.87 is: 4,622.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,472.62 : 5,212.45 = 3,079.87 : x
  2. Step 2: Convert to fraction form
    3,472.62/5,212.45 = 3,079.87/x
  3. Step 3: Cross multiply
    3,472.62x = 5,212.45 × 3,079.87
  4. Step 4: Simplify right side
    3,472.62x = 16,053,688.52
  5. Step 5: Solve for x
    x = 16,053,688.52/3,472.62
  6. Step 6: Final answer
    x = 4,622.93

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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.