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Finding the Fourth Proportional to 3,964.32, 5,948.46 and 1,626

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Solution

The fourth proportional to 3,964.32, 5,948.46 and 1,626 is: 2,439.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.32 : 5,948.46 = 1,626 : x
  2. Step 2: Convert to fraction form
    3,964.32/5,948.46 = 1,626/x
  3. Step 3: Cross multiply
    3,964.32x = 5,948.46 × 1,626
  4. Step 4: Simplify right side
    3,964.32x = 9,672,195.96
  5. Step 5: Solve for x
    x = 9,672,195.96/3,964.32
  6. Step 6: Final answer
    x = 2,439.81

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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.