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Finding the Fourth Proportional to 7,167.80, 10,737.32 and 3,657.66

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Solution

The fourth proportional to 7,167.80, 10,737.32 and 3,657.66 is: 5,479.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,167.80 : 10,737.32 = 3,657.66 : x
  2. Step 2: Convert to fraction form
    7,167.80/10,737.32 = 3,657.66/x
  3. Step 3: Cross multiply
    7,167.80x = 10,737.32 × 3,657.66
  4. Step 4: Simplify right side
    7,167.80x = 39,273,447.58
  5. Step 5: Solve for x
    x = 39,273,447.58/7,167.80
  6. Step 6: Final answer
    x = 5,479.15

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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.