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Finding the Fourth Proportional to 3,867.47, 5,798.99 and 2,551.92

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Solution

The fourth proportional to 3,867.47, 5,798.99 and 2,551.92 is: 3,826.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.47 : 5,798.99 = 2,551.92 : x
  2. Step 2: Convert to fraction form
    3,867.47/5,798.99 = 2,551.92/x
  3. Step 3: Cross multiply
    3,867.47x = 5,798.99 × 2,551.92
  4. Step 4: Simplify right side
    3,867.47x = 14,798,545.80
  5. Step 5: Solve for x
    x = 14,798,545.80/3,867.47
  6. Step 6: Final answer
    x = 3,826.42

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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.