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Finding the Fourth Proportional to 8,255.72, 12,386.82 and 3,065.24

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Solution

The fourth proportional to 8,255.72, 12,386.82 and 3,065.24 is: 4,599.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.72 : 12,386.82 = 3,065.24 : x
  2. Step 2: Convert to fraction form
    8,255.72/12,386.82 = 3,065.24/x
  3. Step 3: Cross multiply
    8,255.72x = 12,386.82 × 3,065.24
  4. Step 4: Simplify right side
    8,255.72x = 37,968,576.14
  5. Step 5: Solve for x
    x = 37,968,576.14/8,255.72
  6. Step 6: Final answer
    x = 4,599.06

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