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Finding the Fourth Proportional to 39,796.46, 54,919.24 and 21,892.82

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Solution

The fourth proportional to 39,796.46, 54,919.24 and 21,892.82 is: 30,212.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,796.46 : 54,919.24 = 21,892.82 : x
  2. Step 2: Convert to fraction form
    39,796.46/54,919.24 = 21,892.82/x
  3. Step 3: Cross multiply
    39,796.46x = 54,919.24 × 21,892.82
  4. Step 4: Simplify right side
    39,796.46x = 1,202,337,118.42
  5. Step 5: Solve for x
    x = 1,202,337,118.42/39,796.46
  6. Step 6: Final answer
    x = 30,212.17

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.