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Finding the Third Proportional to 20,494 and 43,176

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Solution

The third proportional to 20,494 and 43,176 is: 90,961.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,494 : 43,176 = 43,176 : x
  2. Step 2: Convert to fraction form
    20,494/43,176 = 43,176/x
  3. Step 3: Cross multiply
    20,494x = 43,176 × 43,176
  4. Step 4: Simplify right side
    20,494x = 1,864,166,976
  5. Step 5: Solve for x
    x = 1,864,166,976/20,494
  6. Step 6: Final answer
    x = 90,961.60

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.