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Finding the Fourth Proportional to 62,768.25, 86,620.79 and 34,474.55

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Solution

The fourth proportional to 62,768.25, 86,620.79 and 34,474.55 is: 47,575.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,768.25 : 86,620.79 = 34,474.55 : x
  2. Step 2: Convert to fraction form
    62,768.25/86,620.79 = 34,474.55/x
  3. Step 3: Cross multiply
    62,768.25x = 86,620.79 × 34,474.55
  4. Step 4: Simplify right side
    62,768.25x = 2,986,212,408.98
  5. Step 5: Solve for x
    x = 2,986,212,408.98/62,768.25
  6. Step 6: Final answer
    x = 47,575.21

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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.