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Finding the Fourth Proportional to 3,167.92, 4,753.72 and 1,436.72

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Solution

The fourth proportional to 3,167.92, 4,753.72 and 1,436.72 is: 2,155.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.92 : 4,753.72 = 1,436.72 : x
  2. Step 2: Convert to fraction form
    3,167.92/4,753.72 = 1,436.72/x
  3. Step 3: Cross multiply
    3,167.92x = 4,753.72 × 1,436.72
  4. Step 4: Simplify right side
    3,167.92x = 6,829,764.60
  5. Step 5: Solve for x
    x = 6,829,764.60/3,167.92
  6. Step 6: Final answer
    x = 2,155.91

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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.