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Finding the Fourth Proportional to 12,305.43, 16,981.34 and 7,000.23

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Solution

The fourth proportional to 12,305.43, 16,981.34 and 7,000.23 is: 9,660.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305.43 : 16,981.34 = 7,000.23 : x
  2. Step 2: Convert to fraction form
    12,305.43/16,981.34 = 7,000.23/x
  3. Step 3: Cross multiply
    12,305.43x = 16,981.34 × 7,000.23
  4. Step 4: Simplify right side
    12,305.43x = 118,873,250.71
  5. Step 5: Solve for x
    x = 118,873,250.71/12,305.43
  6. Step 6: Final answer
    x = 9,660.23

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