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Finding the Fourth Proportional to 62,819.67, 94,243.41 and 20,698.05

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Solution

The fourth proportional to 62,819.67, 94,243.41 and 20,698.05 is: 31,051.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,819.67 : 94,243.41 = 20,698.05 : x
  2. Step 2: Convert to fraction form
    62,819.67/94,243.41 = 20,698.05/x
  3. Step 3: Cross multiply
    62,819.67x = 94,243.41 × 20,698.05
  4. Step 4: Simplify right side
    62,819.67x = 1,950,654,812.35
  5. Step 5: Solve for x
    x = 1,950,654,812.35/62,819.67
  6. Step 6: Final answer
    x = 31,051.66

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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.