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Finding the Fourth Proportional to 25,943.28, 38,917.80 and 7,476.72

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Solution

The fourth proportional to 25,943.28, 38,917.80 and 7,476.72 is: 11,215.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,943.28 : 38,917.80 = 7,476.72 : x
  2. Step 2: Convert to fraction form
    25,943.28/38,917.80 = 7,476.72/x
  3. Step 3: Cross multiply
    25,943.28x = 38,917.80 × 7,476.72
  4. Step 4: Simplify right side
    25,943.28x = 290,977,493.62
  5. Step 5: Solve for x
    x = 290,977,493.62/25,943.28
  6. Step 6: Final answer
    x = 11,215.91

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