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Finding the Fourth Proportional to 4,481.73, 6,724.11 and 2,289.87

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Solution

The fourth proportional to 4,481.73, 6,724.11 and 2,289.87 is: 3,435.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,481.73 : 6,724.11 = 2,289.87 : x
  2. Step 2: Convert to fraction form
    4,481.73/6,724.11 = 2,289.87/x
  3. Step 3: Cross multiply
    4,481.73x = 6,724.11 × 2,289.87
  4. Step 4: Simplify right side
    4,481.73x = 15,397,346.35
  5. Step 5: Solve for x
    x = 15,397,346.35/4,481.73
  6. Step 6: Final answer
    x = 3,435.58

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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.