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Finding the Fourth Proportional to 69,229.28, 103,843.94 and 21,849.17

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Solution

The fourth proportional to 69,229.28, 103,843.94 and 21,849.17 is: 32,773.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,229.28 : 103,843.94 = 21,849.17 : x
  2. Step 2: Convert to fraction form
    69,229.28/103,843.94 = 21,849.17/x
  3. Step 3: Cross multiply
    69,229.28x = 103,843.94 × 21,849.17
  4. Step 4: Simplify right side
    69,229.28x = 2,268,903,270.06
  5. Step 5: Solve for x
    x = 2,268,903,270.06/69,229.28
  6. Step 6: Final answer
    x = 32,773.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.