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Finding the Fourth Proportional to 25,591.73, 38,389.41 and 8,949.87

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Solution

The fourth proportional to 25,591.73, 38,389.41 and 8,949.87 is: 13,425.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,591.73 : 38,389.41 = 8,949.87 : x
  2. Step 2: Convert to fraction form
    25,591.73/38,389.41 = 8,949.87/x
  3. Step 3: Cross multiply
    25,591.73x = 38,389.41 × 8,949.87
  4. Step 4: Simplify right side
    25,591.73x = 343,580,228.88
  5. Step 5: Solve for x
    x = 343,580,228.88/25,591.73
  6. Step 6: Final answer
    x = 13,425.44

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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.