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Finding the Fourth Proportional to 12,768.90, 19,163.76 and 6,195.07

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Solution

The fourth proportional to 12,768.90, 19,163.76 and 6,195.07 is: 9,297.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768.90 : 19,163.76 = 6,195.07 : x
  2. Step 2: Convert to fraction form
    12,768.90/19,163.76 = 6,195.07/x
  3. Step 3: Cross multiply
    12,768.90x = 19,163.76 × 6,195.07
  4. Step 4: Simplify right side
    12,768.90x = 118,720,834.66
  5. Step 5: Solve for x
    x = 118,720,834.66/12,768.90
  6. Step 6: Final answer
    x = 9,297.66

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