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Finding the Fourth Proportional to 18,163.86, 27,202.05 and 10,348.98

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Solution

The fourth proportional to 18,163.86, 27,202.05 and 10,348.98 is: 15,498.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,163.86 : 27,202.05 = 10,348.98 : x
  2. Step 2: Convert to fraction form
    18,163.86/27,202.05 = 10,348.98/x
  3. Step 3: Cross multiply
    18,163.86x = 27,202.05 × 10,348.98
  4. Step 4: Simplify right side
    18,163.86x = 281,513,471.41
  5. Step 5: Solve for x
    x = 281,513,471.41/18,163.86
  6. Step 6: Final answer
    x = 15,498.55

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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.