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Finding the Third Proportional to 18,556 and 38,023

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Solution

The third proportional to 18,556 and 38,023 is: 77,912.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,556 : 38,023 = 38,023 : x
  2. Step 2: Convert to fraction form
    18,556/38,023 = 38,023/x
  3. Step 3: Cross multiply
    18,556x = 38,023 × 38,023
  4. Step 4: Simplify right side
    18,556x = 1,445,748,529
  5. Step 5: Solve for x
    x = 1,445,748,529/18,556
  6. Step 6: Final answer
    x = 77,912.73

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.