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Finding the Fourth Proportional to 16,879.88, 25,312.53 and 5,787.65

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Solution

The fourth proportional to 16,879.88, 25,312.53 and 5,787.65 is: 8,678.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,879.88 : 25,312.53 = 5,787.65 : x
  2. Step 2: Convert to fraction form
    16,879.88/25,312.53 = 5,787.65/x
  3. Step 3: Cross multiply
    16,879.88x = 25,312.53 × 5,787.65
  4. Step 4: Simplify right side
    16,879.88x = 146,500,064.25
  5. Step 5: Solve for x
    x = 146,500,064.25/16,879.88
  6. Step 6: Final answer
    x = 8,678.98

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