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Finding the Fourth Proportional to 25,732.80, 38,599.20 and 17,859.60

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Solution

The fourth proportional to 25,732.80, 38,599.20 and 17,859.60 is: 26,789.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,732.80 : 38,599.20 = 17,859.60 : x
  2. Step 2: Convert to fraction form
    25,732.80/38,599.20 = 17,859.60/x
  3. Step 3: Cross multiply
    25,732.80x = 38,599.20 × 17,859.60
  4. Step 4: Simplify right side
    25,732.80x = 689,366,272.32
  5. Step 5: Solve for x
    x = 689,366,272.32/25,732.80
  6. Step 6: Final answer
    x = 26,789.40

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