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Finding the Third Proportional to 43,215 and 92,425

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Solution

The third proportional to 43,215 and 92,425 is: 197,671.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,215 : 92,425 = 92,425 : x
  2. Step 2: Convert to fraction form
    43,215/92,425 = 92,425/x
  3. Step 3: Cross multiply
    43,215x = 92,425 × 92,425
  4. Step 4: Simplify right side
    43,215x = 8,542,380,625
  5. Step 5: Solve for x
    x = 8,542,380,625/43,215
  6. Step 6: Final answer
    x = 197,671.66

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.