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Finding the Fourth Proportional to 8,435.73, 12,652.47 and 2,591.85

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Solution

The fourth proportional to 8,435.73, 12,652.47 and 2,591.85 is: 3,887.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,435.73 : 12,652.47 = 2,591.85 : x
  2. Step 2: Convert to fraction form
    8,435.73/12,652.47 = 2,591.85/x
  3. Step 3: Cross multiply
    8,435.73x = 12,652.47 × 2,591.85
  4. Step 4: Simplify right side
    8,435.73x = 32,793,304.37
  5. Step 5: Solve for x
    x = 32,793,304.37/8,435.73
  6. Step 6: Final answer
    x = 3,887.43

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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.