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Finding the Fourth Proportional to 42,794.68, 64,198.17 and 13,214.80

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Solution

The fourth proportional to 42,794.68, 64,198.17 and 13,214.80 is: 19,824.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,794.68 : 64,198.17 = 13,214.80 : x
  2. Step 2: Convert to fraction form
    42,794.68/64,198.17 = 13,214.80/x
  3. Step 3: Cross multiply
    42,794.68x = 64,198.17 × 13,214.80
  4. Step 4: Simplify right side
    42,794.68x = 848,365,976.92
  5. Step 5: Solve for x
    x = 848,365,976.92/42,794.68
  6. Step 6: Final answer
    x = 19,824.10

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