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Finding the Fourth Proportional to 63,021.67, 86,965.81 and 34,727.36

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Solution

The fourth proportional to 63,021.67, 86,965.81 and 34,727.36 is: 47,921.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,021.67 : 86,965.81 = 34,727.36 : x
  2. Step 2: Convert to fraction form
    63,021.67/86,965.81 = 34,727.36/x
  3. Step 3: Cross multiply
    63,021.67x = 86,965.81 × 34,727.36
  4. Step 4: Simplify right side
    63,021.67x = 3,020,092,469.91
  5. Step 5: Solve for x
    x = 3,020,092,469.91/63,021.67
  6. Step 6: Final answer
    x = 47,921.49

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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.