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Finding the Fourth Proportional to 8,079.12, 12,123.30 and 3,696.54

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Solution

The fourth proportional to 8,079.12, 12,123.30 and 3,696.54 is: 5,546.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079.12 : 12,123.30 = 3,696.54 : x
  2. Step 2: Convert to fraction form
    8,079.12/12,123.30 = 3,696.54/x
  3. Step 3: Cross multiply
    8,079.12x = 12,123.30 × 3,696.54
  4. Step 4: Simplify right side
    8,079.12x = 44,814,263.38
  5. Step 5: Solve for x
    x = 44,814,263.38/8,079.12
  6. Step 6: Final answer
    x = 5,546.92

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