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Finding the Third Proportional to 18,933 and 29,312

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Solution

The third proportional to 18,933 and 29,312 is: 45,380.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933 : 29,312 = 29,312 : x
  2. Step 2: Convert to fraction form
    18,933/29,312 = 29,312/x
  3. Step 3: Cross multiply
    18,933x = 29,312 × 29,312
  4. Step 4: Simplify right side
    18,933x = 859,193,344
  5. Step 5: Solve for x
    x = 859,193,344/18,933
  6. Step 6: Final answer
    x = 45,380.73

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.