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Finding the Fourth Proportional to 8,508.01, 12,761.97 and 2,961.31

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Solution

The fourth proportional to 8,508.01, 12,761.97 and 2,961.31 is: 4,441.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508.01 : 12,761.97 = 2,961.31 : x
  2. Step 2: Convert to fraction form
    8,508.01/12,761.97 = 2,961.31/x
  3. Step 3: Cross multiply
    8,508.01x = 12,761.97 × 2,961.31
  4. Step 4: Simplify right side
    8,508.01x = 37,792,149.38
  5. Step 5: Solve for x
    x = 37,792,149.38/8,508.01
  6. Step 6: Final answer
    x = 4,441.95

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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.