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Finding the Fourth Proportional to 27,993.38, 41,990.87 and 7,216.88

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Solution

The fourth proportional to 27,993.38, 41,990.87 and 7,216.88 is: 10,825.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,993.38 : 41,990.87 = 7,216.88 : x
  2. Step 2: Convert to fraction form
    27,993.38/41,990.87 = 7,216.88/x
  3. Step 3: Cross multiply
    27,993.38x = 41,990.87 × 7,216.88
  4. Step 4: Simplify right side
    27,993.38x = 303,042,877.97
  5. Step 5: Solve for x
    x = 303,042,877.97/27,993.38
  6. Step 6: Final answer
    x = 10,825.52

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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.