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Finding the Fourth Proportional to 5,161.92, 7,755.17 and 3,316.61

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Solution

The fourth proportional to 5,161.92, 7,755.17 and 3,316.61 is: 4,982.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.92 : 7,755.17 = 3,316.61 : x
  2. Step 2: Convert to fraction form
    5,161.92/7,755.17 = 3,316.61/x
  3. Step 3: Cross multiply
    5,161.92x = 7,755.17 × 3,316.61
  4. Step 4: Simplify right side
    5,161.92x = 25,720,819.01
  5. Step 5: Solve for x
    x = 25,720,819.01/5,161.92
  6. Step 6: Final answer
    x = 4,982.80

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