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Finding the Fourth Proportional to 18,731.21, 28,100.92 and 7,044.43

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Solution

The fourth proportional to 18,731.21, 28,100.92 and 7,044.43 is: 10,568.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731.21 : 28,100.92 = 7,044.43 : x
  2. Step 2: Convert to fraction form
    18,731.21/28,100.92 = 7,044.43/x
  3. Step 3: Cross multiply
    18,731.21x = 28,100.92 × 7,044.43
  4. Step 4: Simplify right side
    18,731.21x = 197,954,963.88
  5. Step 5: Solve for x
    x = 197,954,963.88/18,731.21
  6. Step 6: Final answer
    x = 10,568.19

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