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Finding the Fourth Proportional to 3,760.44, 5,638.20 and 3,553.92

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Solution

The fourth proportional to 3,760.44, 5,638.20 and 3,553.92 is: 5,328.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,760.44 : 5,638.20 = 3,553.92 : x
  2. Step 2: Convert to fraction form
    3,760.44/5,638.20 = 3,553.92/x
  3. Step 3: Cross multiply
    3,760.44x = 5,638.20 × 3,553.92
  4. Step 4: Simplify right side
    3,760.44x = 20,037,711.74
  5. Step 5: Solve for x
    x = 20,037,711.74/3,760.44
  6. Step 6: Final answer
    x = 5,328.56

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1.5x scale

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.