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Finding the Fourth Proportional to 62,819.93, 94,243.78 and 20,698.31

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Solution

The fourth proportional to 62,819.93, 94,243.78 and 20,698.31 is: 31,052.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,819.93 : 94,243.78 = 20,698.31 : x
  2. Step 2: Convert to fraction form
    62,819.93/94,243.78 = 20,698.31/x
  3. Step 3: Cross multiply
    62,819.93x = 94,243.78 × 20,698.31
  4. Step 4: Simplify right side
    62,819.93x = 1,950,686,502.79
  5. Step 5: Solve for x
    x = 1,950,686,502.79/62,819.93
  6. Step 6: Final answer
    x = 31,052.03

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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.