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Finding the Fourth Proportional to 8,100.43, 12,123.20 and 4,982.41

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Solution

The fourth proportional to 8,100.43, 12,123.20 and 4,982.41 is: 7,456.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,100.43 : 12,123.20 = 4,982.41 : x
  2. Step 2: Convert to fraction form
    8,100.43/12,123.20 = 4,982.41/x
  3. Step 3: Cross multiply
    8,100.43x = 12,123.20 × 4,982.41
  4. Step 4: Simplify right side
    8,100.43x = 60,402,728.00
  5. Step 5: Solve for x
    x = 60,402,728.00/8,100.43
  6. Step 6: Final answer
    x = 7,456.74

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