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Finding the Fourth Proportional to 18,438.24, 27,648.72 and 8,041.44

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Solution

The fourth proportional to 18,438.24, 27,648.72 and 8,041.44 is: 12,058.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438.24 : 27,648.72 = 8,041.44 : x
  2. Step 2: Convert to fraction form
    18,438.24/27,648.72 = 8,041.44/x
  3. Step 3: Cross multiply
    18,438.24x = 27,648.72 × 8,041.44
  4. Step 4: Simplify right side
    18,438.24x = 222,335,522.96
  5. Step 5: Solve for x
    x = 222,335,522.96/18,438.24
  6. Step 6: Final answer
    x = 12,058.39

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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.