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Finding the Fourth Proportional to 3,338.42, 5,008.18 and 1,029.92

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Solution

The fourth proportional to 3,338.42, 5,008.18 and 1,029.92 is: 1,545.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,338.42 : 5,008.18 = 1,029.92 : x
  2. Step 2: Convert to fraction form
    3,338.42/5,008.18 = 1,029.92/x
  3. Step 3: Cross multiply
    3,338.42x = 5,008.18 × 1,029.92
  4. Step 4: Simplify right side
    3,338.42x = 5,158,024.75
  5. Step 5: Solve for x
    x = 5,158,024.75/3,338.42
  6. Step 6: Final answer
    x = 1,545.05

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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.