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Finding the Fourth Proportional to 41,920.40, 62,880.60 and 14,218.64

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Solution

The fourth proportional to 41,920.40, 62,880.60 and 14,218.64 is: 21,327.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,920.40 : 62,880.60 = 14,218.64 : x
  2. Step 2: Convert to fraction form
    41,920.40/62,880.60 = 14,218.64/x
  3. Step 3: Cross multiply
    41,920.40x = 62,880.60 × 14,218.64
  4. Step 4: Simplify right side
    41,920.40x = 894,076,614.38
  5. Step 5: Solve for x
    x = 894,076,614.38/41,920.40
  6. Step 6: Final answer
    x = 21,327.96

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