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Finding the Fourth Proportional to 61,515.73, 84,891.70 and 33,221.41

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Solution

The fourth proportional to 61,515.73, 84,891.70 and 33,221.41 is: 45,845.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,515.73 : 84,891.70 = 33,221.41 : x
  2. Step 2: Convert to fraction form
    61,515.73/84,891.70 = 33,221.41/x
  3. Step 3: Cross multiply
    61,515.73x = 84,891.70 × 33,221.41
  4. Step 4: Simplify right side
    61,515.73x = 2,820,221,971.30
  5. Step 5: Solve for x
    x = 2,820,221,971.30/61,515.73
  6. Step 6: Final answer
    x = 45,845.54

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Why These Related Problems?

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