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Finding the Fourth Proportional to 3,974.92, 5,956.02 and 3,355.72

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Solution

The fourth proportional to 3,974.92, 5,956.02 and 3,355.72 is: 5,028.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.92 : 5,956.02 = 3,355.72 : x
  2. Step 2: Convert to fraction form
    3,974.92/5,956.02 = 3,355.72/x
  3. Step 3: Cross multiply
    3,974.92x = 5,956.02 × 3,355.72
  4. Step 4: Simplify right side
    3,974.92x = 19,986,735.43
  5. Step 5: Solve for x
    x = 19,986,735.43/3,974.92
  6. Step 6: Final answer
    x = 5,028.21

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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.