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Finding the Fourth Proportional to 3,656.88, 5,486.91 and 1,192.47

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Solution

The fourth proportional to 3,656.88, 5,486.91 and 1,192.47 is: 1,789.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,656.88 : 5,486.91 = 1,192.47 : x
  2. Step 2: Convert to fraction form
    3,656.88/5,486.91 = 1,192.47/x
  3. Step 3: Cross multiply
    3,656.88x = 5,486.91 × 1,192.47
  4. Step 4: Simplify right side
    3,656.88x = 6,542,975.57
  5. Step 5: Solve for x
    x = 6,542,975.57/3,656.88
  6. Step 6: Final answer
    x = 1,789.22

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