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Finding the Third Proportional to 20,160 and 43,782

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Solution

The third proportional to 20,160 and 43,782 is: 95,082.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160 : 43,782 = 43,782 : x
  2. Step 2: Convert to fraction form
    20,160/43,782 = 43,782/x
  3. Step 3: Cross multiply
    20,160x = 43,782 × 43,782
  4. Step 4: Simplify right side
    20,160x = 1,916,863,524
  5. Step 5: Solve for x
    x = 1,916,863,524/20,160
  6. Step 6: Final answer
    x = 95,082.52

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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.