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Finding the Fourth Proportional to 3,949.92, 5,924.87 and 1,028.22

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Solution

The fourth proportional to 3,949.92, 5,924.87 and 1,028.22 is: 1,542.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.92 : 5,924.87 = 1,028.22 : x
  2. Step 2: Convert to fraction form
    3,949.92/5,924.87 = 1,028.22/x
  3. Step 3: Cross multiply
    3,949.92x = 5,924.87 × 1,028.22
  4. Step 4: Simplify right side
    3,949.92x = 6,092,079.50
  5. Step 5: Solve for x
    x = 6,092,079.50/3,949.92
  6. Step 6: Final answer
    x = 1,542.33

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Similar ratio
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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.