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Finding the Fourth Proportional to 10,405.52, 15,584.72 and 8,048.96

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Solution

The fourth proportional to 10,405.52, 15,584.72 and 8,048.96 is: 12,055.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,405.52 : 15,584.72 = 8,048.96 : x
  2. Step 2: Convert to fraction form
    10,405.52/15,584.72 = 8,048.96/x
  3. Step 3: Cross multiply
    10,405.52x = 15,584.72 × 8,048.96
  4. Step 4: Simplify right side
    10,405.52x = 125,440,787.89
  5. Step 5: Solve for x
    x = 125,440,787.89/10,405.52
  6. Step 6: Final answer
    x = 12,055.22

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