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Finding the Fourth Proportional to 31,947.84, 47,907.36 and 9,763.92

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Solution

The fourth proportional to 31,947.84, 47,907.36 and 9,763.92 is: 14,641.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,947.84 : 47,907.36 = 9,763.92 : x
  2. Step 2: Convert to fraction form
    31,947.84/47,907.36 = 9,763.92/x
  3. Step 3: Cross multiply
    31,947.84x = 47,907.36 × 9,763.92
  4. Step 4: Simplify right side
    31,947.84x = 467,763,630.45
  5. Step 5: Solve for x
    x = 467,763,630.45/31,947.84
  6. Step 6: Final answer
    x = 14,641.48

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