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Finding the Fourth Proportional to 31,896.44, 47,840.90 and 8,524.68

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Solution

The fourth proportional to 31,896.44, 47,840.90 and 8,524.68 is: 12,786.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,896.44 : 47,840.90 = 8,524.68 : x
  2. Step 2: Convert to fraction form
    31,896.44/47,840.90 = 8,524.68/x
  3. Step 3: Cross multiply
    31,896.44x = 47,840.90 × 8,524.68
  4. Step 4: Simplify right side
    31,896.44x = 407,828,363.41
  5. Step 5: Solve for x
    x = 407,828,363.41/31,896.44
  6. Step 6: Final answer
    x = 12,786.02

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