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Finding the Third Proportional to 20,162 and 47,085

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Solution

The third proportional to 20,162 and 47,085 is: 109,959.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162 : 47,085 = 47,085 : x
  2. Step 2: Convert to fraction form
    20,162/47,085 = 47,085/x
  3. Step 3: Cross multiply
    20,162x = 47,085 × 47,085
  4. Step 4: Simplify right side
    20,162x = 2,216,997,225
  5. Step 5: Solve for x
    x = 2,216,997,225/20,162
  6. Step 6: Final answer
    x = 109,959.19

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.