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Finding the Fourth Proportional to 18,015.58, 27,022.78 and 8,154.85

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Solution

The fourth proportional to 18,015.58, 27,022.78 and 8,154.85 is: 12,232.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,015.58 : 27,022.78 = 8,154.85 : x
  2. Step 2: Convert to fraction form
    18,015.58/27,022.78 = 8,154.85/x
  3. Step 3: Cross multiply
    18,015.58x = 27,022.78 × 8,154.85
  4. Step 4: Simplify right side
    18,015.58x = 220,366,717.48
  5. Step 5: Solve for x
    x = 220,366,717.48/18,015.58
  6. Step 6: Final answer
    x = 12,232.01

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.