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Finding the Fourth Proportional to 12,208.80, 18,302.40 and 7,273.20

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Solution

The fourth proportional to 12,208.80, 18,302.40 and 7,273.20 is: 10,903.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.80 : 18,302.40 = 7,273.20 : x
  2. Step 2: Convert to fraction form
    12,208.80/18,302.40 = 7,273.20/x
  3. Step 3: Cross multiply
    12,208.80x = 18,302.40 × 7,273.20
  4. Step 4: Simplify right side
    12,208.80x = 133,117,015.68
  5. Step 5: Solve for x
    x = 133,117,015.68/12,208.80
  6. Step 6: Final answer
    x = 10,903.37

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