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Finding the Fourth Proportional to 60,721.92, 91,074.65 and 16,351.33

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Solution

The fourth proportional to 60,721.92, 91,074.65 and 16,351.33 is: 24,524.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,721.92 : 91,074.65 = 16,351.33 : x
  2. Step 2: Convert to fraction form
    60,721.92/91,074.65 = 16,351.33/x
  3. Step 3: Cross multiply
    60,721.92x = 91,074.65 × 16,351.33
  4. Step 4: Simplify right side
    60,721.92x = 1,489,191,656.78
  5. Step 5: Solve for x
    x = 1,489,191,656.78/60,721.92
  6. Step 6: Final answer
    x = 24,524.78

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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.