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Finding the Fourth Proportional to 3,983.52, 5,975.40 and 1,062.12

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Solution

The fourth proportional to 3,983.52, 5,975.40 and 1,062.12 is: 1,593.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.52 : 5,975.40 = 1,062.12 : x
  2. Step 2: Convert to fraction form
    3,983.52/5,975.40 = 1,062.12/x
  3. Step 3: Cross multiply
    3,983.52x = 5,975.40 × 1,062.12
  4. Step 4: Simplify right side
    3,983.52x = 6,346,591.85
  5. Step 5: Solve for x
    x = 6,346,591.85/3,983.52
  6. Step 6: Final answer
    x = 1,593.21

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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.