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Finding the Fourth Proportional to 18,550.61, 27,815.50 and 8,014.05

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Solution

The fourth proportional to 18,550.61, 27,815.50 and 8,014.05 is: 12,016.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,550.61 : 27,815.50 = 8,014.05 : x
  2. Step 2: Convert to fraction form
    18,550.61/27,815.50 = 8,014.05/x
  3. Step 3: Cross multiply
    18,550.61x = 27,815.50 × 8,014.05
  4. Step 4: Simplify right side
    18,550.61x = 222,914,787.74
  5. Step 5: Solve for x
    x = 222,914,787.74/18,550.61
  6. Step 6: Final answer
    x = 12,016.58

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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.