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Finding the Third Proportional to 38,890 and 50,559

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Solution

The third proportional to 38,890 and 50,559 is: 65,729.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,890 : 50,559 = 50,559 : x
  2. Step 2: Convert to fraction form
    38,890/50,559 = 50,559/x
  3. Step 3: Cross multiply
    38,890x = 50,559 × 50,559
  4. Step 4: Simplify right side
    38,890x = 2,556,212,481
  5. Step 5: Solve for x
    x = 2,556,212,481/38,890
  6. Step 6: Final answer
    x = 65,729.30

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.