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Finding the Fourth Proportional to 19,311.48, 26,671.78 and 13,012.92

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Solution

The fourth proportional to 19,311.48, 26,671.78 and 13,012.92 is: 17,972.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,311.48 : 26,671.78 = 13,012.92 : x
  2. Step 2: Convert to fraction form
    19,311.48/26,671.78 = 13,012.92/x
  3. Step 3: Cross multiply
    19,311.48x = 26,671.78 × 13,012.92
  4. Step 4: Simplify right side
    19,311.48x = 347,077,739.40
  5. Step 5: Solve for x
    x = 347,077,739.40/19,311.48
  6. Step 6: Final answer
    x = 17,972.61

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