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Finding the Fourth Proportional to 3,385.95, 5,073.30 and 3,257.97

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Solution

The fourth proportional to 3,385.95, 5,073.30 and 3,257.97 is: 4,881.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.95 : 5,073.30 = 3,257.97 : x
  2. Step 2: Convert to fraction form
    3,385.95/5,073.30 = 3,257.97/x
  3. Step 3: Cross multiply
    3,385.95x = 5,073.30 × 3,257.97
  4. Step 4: Simplify right side
    3,385.95x = 16,528,659.20
  5. Step 5: Solve for x
    x = 16,528,659.20/3,385.95
  6. Step 6: Final answer
    x = 4,881.54

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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.