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Finding the Fourth Proportional to 8,109.84, 12,168.24 and 3,953.52

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Solution

The fourth proportional to 8,109.84, 12,168.24 and 3,953.52 is: 5,931.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.84 : 12,168.24 = 3,953.52 : x
  2. Step 2: Convert to fraction form
    8,109.84/12,168.24 = 3,953.52/x
  3. Step 3: Cross multiply
    8,109.84x = 12,168.24 × 3,953.52
  4. Step 4: Simplify right side
    8,109.84x = 48,107,380.20
  5. Step 5: Solve for x
    x = 48,107,380.20/8,109.84
  6. Step 6: Final answer
    x = 5,931.98

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