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Finding the Fourth Proportional to 8,540.98, 12,813.54 and 3,275.89

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Solution

The fourth proportional to 8,540.98, 12,813.54 and 3,275.89 is: 4,914.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.98 : 12,813.54 = 3,275.89 : x
  2. Step 2: Convert to fraction form
    8,540.98/12,813.54 = 3,275.89/x
  3. Step 3: Cross multiply
    8,540.98x = 12,813.54 × 3,275.89
  4. Step 4: Simplify right side
    8,540.98x = 41,975,712.65
  5. Step 5: Solve for x
    x = 41,975,712.65/8,540.98
  6. Step 6: Final answer
    x = 4,914.63

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