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Finding the Fourth Proportional to 62,819.90, 86,690.49 and 34,524.98

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Solution

The fourth proportional to 62,819.90, 86,690.49 and 34,524.98 is: 47,643.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,819.90 : 86,690.49 = 34,524.98 : x
  2. Step 2: Convert to fraction form
    62,819.90/86,690.49 = 34,524.98/x
  3. Step 3: Cross multiply
    62,819.90x = 86,690.49 × 34,524.98
  4. Step 4: Simplify right side
    62,819.90x = 2,992,987,433.44
  5. Step 5: Solve for x
    x = 2,992,987,433.44/62,819.90
  6. Step 6: Final answer
    x = 47,643.94

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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.