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Finding the Fourth Proportional to 69,881.48, 104,789.94 and 22,487.75

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Solution

The fourth proportional to 69,881.48, 104,789.94 and 22,487.75 is: 33,721.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,881.48 : 104,789.94 = 22,487.75 : x
  2. Step 2: Convert to fraction form
    69,881.48/104,789.94 = 22,487.75/x
  3. Step 3: Cross multiply
    69,881.48x = 104,789.94 × 22,487.75
  4. Step 4: Simplify right side
    69,881.48x = 2,356,489,449.29
  5. Step 5: Solve for x
    x = 2,356,489,449.29/69,881.48
  6. Step 6: Final answer
    x = 33,721.23

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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.