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Finding the Fourth Proportional to 62,806, 93,991.77 and 38,780.44

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Solution

The fourth proportional to 62,806, 93,991.77 and 38,780.44 is: 58,036.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,806 : 93,991.77 = 38,780.44 : x
  2. Step 2: Convert to fraction form
    62,806/93,991.77 = 38,780.44/x
  3. Step 3: Cross multiply
    62,806x = 93,991.77 × 38,780.44
  4. Step 4: Simplify right side
    62,806x = 3,645,042,196.98
  5. Step 5: Solve for x
    x = 3,645,042,196.98/62,806
  6. Step 6: Final answer
    x = 58,036.53

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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.