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Finding the Fourth Proportional to 62,469.72, 86,208.66 and 33,789.39

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Solution

The fourth proportional to 62,469.72, 86,208.66 and 33,789.39 is: 46,629.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,469.72 : 86,208.66 = 33,789.39 : x
  2. Step 2: Convert to fraction form
    62,469.72/86,208.66 = 33,789.39/x
  3. Step 3: Cross multiply
    62,469.72x = 86,208.66 × 33,789.39
  4. Step 4: Simplify right side
    62,469.72x = 2,912,938,034.12
  5. Step 5: Solve for x
    x = 2,912,938,034.12/62,469.72
  6. Step 6: Final answer
    x = 46,629.60

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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.