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Finding the Fourth Proportional to 34,428.10, 51,642.71 and 11,939.48

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Solution

The fourth proportional to 34,428.10, 51,642.71 and 11,939.48 is: 17,909.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,428.10 : 51,642.71 = 11,939.48 : x
  2. Step 2: Convert to fraction form
    34,428.10/51,642.71 = 11,939.48/x
  3. Step 3: Cross multiply
    34,428.10x = 51,642.71 × 11,939.48
  4. Step 4: Simplify right side
    34,428.10x = 616,587,043.49
  5. Step 5: Solve for x
    x = 616,587,043.49/34,428.10
  6. Step 6: Final answer
    x = 17,909.42

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