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Finding the Third Proportional to 20,163 and 43,785

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Solution

The third proportional to 20,163 and 43,785 is: 95,081.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163 : 43,785 = 43,785 : x
  2. Step 2: Convert to fraction form
    20,163/43,785 = 43,785/x
  3. Step 3: Cross multiply
    20,163x = 43,785 × 43,785
  4. Step 4: Simplify right side
    20,163x = 1,917,126,225
  5. Step 5: Solve for x
    x = 1,917,126,225/20,163
  6. Step 6: Final answer
    x = 95,081.40

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.