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Finding the Fourth Proportional to 5,591.43, 8,389.08 and 2,815.84

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Solution

The fourth proportional to 5,591.43, 8,389.08 and 2,815.84 is: 4,224.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,591.43 : 8,389.08 = 2,815.84 : x
  2. Step 2: Convert to fraction form
    5,591.43/8,389.08 = 2,815.84/x
  3. Step 3: Cross multiply
    5,591.43x = 8,389.08 × 2,815.84
  4. Step 4: Simplify right side
    5,591.43x = 23,622,282.53
  5. Step 5: Solve for x
    x = 23,622,282.53/5,591.43
  6. Step 6: Final answer
    x = 4,224.73

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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.