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Finding the Third Proportional to 12,933 and 19,775

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Solution

The third proportional to 12,933 and 19,775 is: 30,236.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,933 : 19,775 = 19,775 : x
  2. Step 2: Convert to fraction form
    12,933/19,775 = 19,775/x
  3. Step 3: Cross multiply
    12,933x = 19,775 × 19,775
  4. Step 4: Simplify right side
    12,933x = 391,050,625
  5. Step 5: Solve for x
    x = 391,050,625/12,933
  6. Step 6: Final answer
    x = 30,236.65

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.