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Finding the Fourth Proportional to 19,195.66, 28,805.80 and 13,255.22

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Solution

The fourth proportional to 19,195.66, 28,805.80 and 13,255.22 is: 19,891.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,195.66 : 28,805.80 = 13,255.22 : x
  2. Step 2: Convert to fraction form
    19,195.66/28,805.80 = 13,255.22/x
  3. Step 3: Cross multiply
    19,195.66x = 28,805.80 × 13,255.22
  4. Step 4: Simplify right side
    19,195.66x = 381,827,216.28
  5. Step 5: Solve for x
    x = 381,827,216.28/19,195.66
  6. Step 6: Final answer
    x = 19,891.33

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