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Finding the Third Proportional to 18,634 and 28,193

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Solution

The third proportional to 18,634 and 28,193 is: 42,655.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,634 : 28,193 = 28,193 : x
  2. Step 2: Convert to fraction form
    18,634/28,193 = 28,193/x
  3. Step 3: Cross multiply
    18,634x = 28,193 × 28,193
  4. Step 4: Simplify right side
    18,634x = 794,845,249
  5. Step 5: Solve for x
    x = 794,845,249/18,634
  6. Step 6: Final answer
    x = 42,655.64

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.