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Finding the Fourth Proportional to 12,795.91, 19,182.83 and 5,198.18

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Solution

The fourth proportional to 12,795.91, 19,182.83 and 5,198.18 is: 7,792.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,795.91 : 19,182.83 = 5,198.18 : x
  2. Step 2: Convert to fraction form
    12,795.91/19,182.83 = 5,198.18/x
  3. Step 3: Cross multiply
    12,795.91x = 19,182.83 × 5,198.18
  4. Step 4: Simplify right side
    12,795.91x = 99,715,681.34
  5. Step 5: Solve for x
    x = 99,715,681.34/12,795.91
  6. Step 6: Final answer
    x = 7,792.78

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