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Finding the Fourth Proportional to 38,110.95, 57,168.05 and 11,816.19

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Solution

The fourth proportional to 38,110.95, 57,168.05 and 11,816.19 is: 17,724.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,110.95 : 57,168.05 = 11,816.19 : x
  2. Step 2: Convert to fraction form
    38,110.95/57,168.05 = 11,816.19/x
  3. Step 3: Cross multiply
    38,110.95x = 57,168.05 × 11,816.19
  4. Step 4: Simplify right side
    38,110.95x = 675,508,481.65
  5. Step 5: Solve for x
    x = 675,508,481.65/38,110.95
  6. Step 6: Final answer
    x = 17,724.79

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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.