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Finding the Fourth Proportional to 29,387.81, 40,554.45 and 16,811.75

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Solution

The fourth proportional to 29,387.81, 40,554.45 and 16,811.75 is: 23,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,387.81 : 40,554.45 = 16,811.75 : x
  2. Step 2: Convert to fraction form
    29,387.81/40,554.45 = 16,811.75/x
  3. Step 3: Cross multiply
    29,387.81x = 40,554.45 × 16,811.75
  4. Step 4: Simplify right side
    29,387.81x = 681,791,274.79
  5. Step 5: Solve for x
    x = 681,791,274.79/29,387.81
  6. Step 6: Final answer
    x = 23,199.80

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