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Finding the Fourth Proportional to 3,747.88, 5,169.72 and 2,351.44

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Solution

The fourth proportional to 3,747.88, 5,169.72 and 2,351.44 is: 3,243.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.88 : 5,169.72 = 2,351.44 : x
  2. Step 2: Convert to fraction form
    3,747.88/5,169.72 = 2,351.44/x
  3. Step 3: Cross multiply
    3,747.88x = 5,169.72 × 2,351.44
  4. Step 4: Simplify right side
    3,747.88x = 12,156,286.40
  5. Step 5: Solve for x
    x = 12,156,286.40/3,747.88
  6. Step 6: Final answer
    x = 3,243.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.