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Finding the Fourth Proportional to 33,665.73, 50,442.80 and 20,478.21

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Solution

The fourth proportional to 33,665.73, 50,442.80 and 20,478.21 is: 30,683.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,665.73 : 50,442.80 = 20,478.21 : x
  2. Step 2: Convert to fraction form
    33,665.73/50,442.80 = 20,478.21/x
  3. Step 3: Cross multiply
    33,665.73x = 50,442.80 × 20,478.21
  4. Step 4: Simplify right side
    33,665.73x = 1,032,978,149.00
  5. Step 5: Solve for x
    x = 1,032,978,149.00/33,665.73
  6. Step 6: Final answer
    x = 30,683.37

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