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Finding the Third Proportional to 20,121.75 and 29,944.69

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Solution

The third proportional to 20,121.75 and 29,944.69 is: 44,562.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,121.75 : 29,944.69 = 29,944.69 : x
  2. Step 2: Convert to fraction form
    20,121.75/29,944.69 = 29,944.69/x
  3. Step 3: Cross multiply
    20,121.75x = 29,944.69 × 29,944.69
  4. Step 4: Simplify right side
    20,121.75x = 896,684,309.47
  5. Step 5: Solve for x
    x = 896,684,309.47/20,121.75
  6. Step 6: Final answer
    x = 44,562.94

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.