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Finding the Fourth Proportional to 8,372.97, 12,560.97 and 3,446.15

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Solution

The fourth proportional to 8,372.97, 12,560.97 and 3,446.15 is: 5,169.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,372.97 : 12,560.97 = 3,446.15 : x
  2. Step 2: Convert to fraction form
    8,372.97/12,560.97 = 3,446.15/x
  3. Step 3: Cross multiply
    8,372.97x = 12,560.97 × 3,446.15
  4. Step 4: Simplify right side
    8,372.97x = 43,286,936.88
  5. Step 5: Solve for x
    x = 43,286,936.88/8,372.97
  6. Step 6: Final answer
    x = 5,169.84

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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.