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Finding the Fourth Proportional to 19,181.64, 28,771.26 and 8,082.44

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Solution

The fourth proportional to 19,181.64, 28,771.26 and 8,082.44 is: 12,123.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,181.64 : 28,771.26 = 8,082.44 : x
  2. Step 2: Convert to fraction form
    19,181.64/28,771.26 = 8,082.44/x
  3. Step 3: Cross multiply
    19,181.64x = 28,771.26 × 8,082.44
  4. Step 4: Simplify right side
    19,181.64x = 232,541,982.67
  5. Step 5: Solve for x
    x = 232,541,982.67/19,181.64
  6. Step 6: Final answer
    x = 12,123.15

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