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Finding the Fourth Proportional to 45,333.60, 68,022.68 and 20,391.28

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Solution

The fourth proportional to 45,333.60, 68,022.68 and 20,391.28 is: 30,596.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,333.60 : 68,022.68 = 20,391.28 : x
  2. Step 2: Convert to fraction form
    45,333.60/68,022.68 = 20,391.28/x
  3. Step 3: Cross multiply
    45,333.60x = 68,022.68 × 20,391.28
  4. Step 4: Simplify right side
    45,333.60x = 1,387,069,514.23
  5. Step 5: Solve for x
    x = 1,387,069,514.23/45,333.60
  6. Step 6: Final answer
    x = 30,596.94

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