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Finding the Fourth Proportional to 8,247.62, 12,371.97 and 2,699.48

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Solution

The fourth proportional to 8,247.62, 12,371.97 and 2,699.48 is: 4,049.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,247.62 : 12,371.97 = 2,699.48 : x
  2. Step 2: Convert to fraction form
    8,247.62/12,371.97 = 2,699.48/x
  3. Step 3: Cross multiply
    8,247.62x = 12,371.97 × 2,699.48
  4. Step 4: Simplify right side
    8,247.62x = 33,397,885.58
  5. Step 5: Solve for x
    x = 33,397,885.58/8,247.62
  6. Step 6: Final answer
    x = 4,049.40

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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.