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Finding the Fourth Proportional to 7,480.74, 11,229.57 and 3,787.14

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Solution

The fourth proportional to 7,480.74, 11,229.57 and 3,787.14 is: 5,684.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.74 : 11,229.57 = 3,787.14 : x
  2. Step 2: Convert to fraction form
    7,480.74/11,229.57 = 3,787.14/x
  3. Step 3: Cross multiply
    7,480.74x = 11,229.57 × 3,787.14
  4. Step 4: Simplify right side
    7,480.74x = 42,527,953.73
  5. Step 5: Solve for x
    x = 42,527,953.73/7,480.74
  6. Step 6: Final answer
    x = 5,684.99

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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.