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Finding the Fourth Proportional to 12,225.21, 18,324.99 and 5,655.71

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Solution

The fourth proportional to 12,225.21, 18,324.99 and 5,655.71 is: 8,477.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225.21 : 18,324.99 = 5,655.71 : x
  2. Step 2: Convert to fraction form
    12,225.21/18,324.99 = 5,655.71/x
  3. Step 3: Cross multiply
    12,225.21x = 18,324.99 × 5,655.71
  4. Step 4: Simplify right side
    12,225.21x = 103,640,737.57
  5. Step 5: Solve for x
    x = 103,640,737.57/12,225.21
  6. Step 6: Final answer
    x = 8,477.62

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