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Finding the Fourth Proportional to 12,060.78, 18,084.66 and 3,737.22

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Solution

The fourth proportional to 12,060.78, 18,084.66 and 3,737.22 is: 5,603.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,060.78 : 18,084.66 = 3,737.22 : x
  2. Step 2: Convert to fraction form
    12,060.78/18,084.66 = 3,737.22/x
  3. Step 3: Cross multiply
    12,060.78x = 18,084.66 × 3,737.22
  4. Step 4: Simplify right side
    12,060.78x = 67,586,353.05
  5. Step 5: Solve for x
    x = 67,586,353.05/12,060.78
  6. Step 6: Final answer
    x = 5,603.81

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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.