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Finding the Fourth Proportional to 55,165.05, 82,724.90 and 21,880.53

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Solution

The fourth proportional to 55,165.05, 82,724.90 and 21,880.53 is: 32,811.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,165.05 : 82,724.90 = 21,880.53 : x
  2. Step 2: Convert to fraction form
    55,165.05/82,724.90 = 21,880.53/x
  3. Step 3: Cross multiply
    55,165.05x = 82,724.90 × 21,880.53
  4. Step 4: Simplify right side
    55,165.05x = 1,810,064,546.79
  5. Step 5: Solve for x
    x = 1,810,064,546.79/55,165.05
  6. Step 6: Final answer
    x = 32,811.80

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