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Finding the Fourth Proportional to 18,474.05, 27,711.07 and 6,787.26

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Solution

The fourth proportional to 18,474.05, 27,711.07 and 6,787.26 is: 10,180.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,474.05 : 27,711.07 = 6,787.26 : x
  2. Step 2: Convert to fraction form
    18,474.05/27,711.07 = 6,787.26/x
  3. Step 3: Cross multiply
    18,474.05x = 27,711.07 × 6,787.26
  4. Step 4: Simplify right side
    18,474.05x = 188,082,220.00
  5. Step 5: Solve for x
    x = 188,082,220.00/18,474.05
  6. Step 6: Final answer
    x = 10,180.89

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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.