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Finding the Fourth Proportional to 69,997.84, 104,829.56 and 38,755.60

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Solution

The fourth proportional to 69,997.84, 104,829.56 and 38,755.60 is: 58,040.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,997.84 : 104,829.56 = 38,755.60 : x
  2. Step 2: Convert to fraction form
    69,997.84/104,829.56 = 38,755.60/x
  3. Step 3: Cross multiply
    69,997.84x = 104,829.56 × 38,755.60
  4. Step 4: Simplify right side
    69,997.84x = 4,062,732,495.54
  5. Step 5: Solve for x
    x = 4,062,732,495.54/69,997.84
  6. Step 6: Final answer
    x = 58,040.83

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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.