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Finding the Fourth Proportional to 3,984.12, 5,975.74 and 1,062.68

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Solution

The fourth proportional to 3,984.12, 5,975.74 and 1,062.68 is: 1,593.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.12 : 5,975.74 = 1,062.68 : x
  2. Step 2: Convert to fraction form
    3,984.12/5,975.74 = 1,062.68/x
  3. Step 3: Cross multiply
    3,984.12x = 5,975.74 × 1,062.68
  4. Step 4: Simplify right side
    3,984.12x = 6,350,299.38
  5. Step 5: Solve for x
    x = 6,350,299.38/3,984.12
  6. Step 6: Final answer
    x = 1,593.90

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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.