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Finding the Fourth Proportional to 7,915.97, 11,866.91 and 3,753.38

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Solution

The fourth proportional to 7,915.97, 11,866.91 and 3,753.38 is: 5,626.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.97 : 11,866.91 = 3,753.38 : x
  2. Step 2: Convert to fraction form
    7,915.97/11,866.91 = 3,753.38/x
  3. Step 3: Cross multiply
    7,915.97x = 11,866.91 × 3,753.38
  4. Step 4: Simplify right side
    7,915.97x = 44,541,003.89
  5. Step 5: Solve for x
    x = 44,541,003.89/7,915.97
  6. Step 6: Final answer
    x = 5,626.73

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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.