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Finding the Fourth Proportional to 22,703.18, 31,329.90 and 12,631.23

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Solution

The fourth proportional to 22,703.18, 31,329.90 and 12,631.23 is: 17,430.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,703.18 : 31,329.90 = 12,631.23 : x
  2. Step 2: Convert to fraction form
    22,703.18/31,329.90 = 12,631.23/x
  3. Step 3: Cross multiply
    22,703.18x = 31,329.90 × 12,631.23
  4. Step 4: Simplify right side
    22,703.18x = 395,735,172.78
  5. Step 5: Solve for x
    x = 395,735,172.78/22,703.18
  6. Step 6: Final answer
    x = 17,430.83

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