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Finding the Fourth Proportional to 3,862.88, 5,793.36 and 3,247.04

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Solution

The fourth proportional to 3,862.88, 5,793.36 and 3,247.04 is: 4,869.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,862.88 : 5,793.36 = 3,247.04 : x
  2. Step 2: Convert to fraction form
    3,862.88/5,793.36 = 3,247.04/x
  3. Step 3: Cross multiply
    3,862.88x = 5,793.36 × 3,247.04
  4. Step 4: Simplify right side
    3,862.88x = 18,811,271.65
  5. Step 5: Solve for x
    x = 18,811,271.65/3,862.88
  6. Step 6: Final answer
    x = 4,869.75

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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.