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Finding the Fourth Proportional to 25,486.62, 38,161.41 and 20,787.24

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Solution

The fourth proportional to 25,486.62, 38,161.41 and 20,787.24 is: 31,124.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,486.62 : 38,161.41 = 20,787.24 : x
  2. Step 2: Convert to fraction form
    25,486.62/38,161.41 = 20,787.24/x
  3. Step 3: Cross multiply
    25,486.62x = 38,161.41 × 20,787.24
  4. Step 4: Simplify right side
    25,486.62x = 793,270,388.41
  5. Step 5: Solve for x
    x = 793,270,388.41/25,486.62
  6. Step 6: Final answer
    x = 31,124.97

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