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Finding the Fourth Proportional to 3,752.70, 5,174.20 and 2,425.92

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Solution

The fourth proportional to 3,752.70, 5,174.20 and 2,425.92 is: 3,344.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,752.70 : 5,174.20 = 2,425.92 : x
  2. Step 2: Convert to fraction form
    3,752.70/5,174.20 = 2,425.92/x
  3. Step 3: Cross multiply
    3,752.70x = 5,174.20 × 2,425.92
  4. Step 4: Simplify right side
    3,752.70x = 12,552,195.26
  5. Step 5: Solve for x
    x = 12,552,195.26/3,752.70
  6. Step 6: Final answer
    x = 3,344.84

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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.