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Finding the Third Proportional to 12,843 and 28,203

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Solution

The third proportional to 12,843 and 28,203 is: 61,933.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,843 : 28,203 = 28,203 : x
  2. Step 2: Convert to fraction form
    12,843/28,203 = 28,203/x
  3. Step 3: Cross multiply
    12,843x = 28,203 × 28,203
  4. Step 4: Simplify right side
    12,843x = 795,409,209
  5. Step 5: Solve for x
    x = 795,409,209/12,843
  6. Step 6: Final answer
    x = 61,933.29

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.