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Finding the Fourth Proportional to 8,168.67, 12,251.79 and 2,974.59

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Solution

The fourth proportional to 8,168.67, 12,251.79 and 2,974.59 is: 4,461.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.67 : 12,251.79 = 2,974.59 : x
  2. Step 2: Convert to fraction form
    8,168.67/12,251.79 = 2,974.59/x
  3. Step 3: Cross multiply
    8,168.67x = 12,251.79 × 2,974.59
  4. Step 4: Simplify right side
    8,168.67x = 36,444,052.02
  5. Step 5: Solve for x
    x = 36,444,052.02/8,168.67
  6. Step 6: Final answer
    x = 4,461.44

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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.