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Finding the Third Proportional to 18,666 and 38,304

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Solution

The third proportional to 18,666 and 38,304 is: 78,602.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,666 : 38,304 = 38,304 : x
  2. Step 2: Convert to fraction form
    18,666/38,304 = 38,304/x
  3. Step 3: Cross multiply
    18,666x = 38,304 × 38,304
  4. Step 4: Simplify right side
    18,666x = 1,467,196,416
  5. Step 5: Solve for x
    x = 1,467,196,416/18,666
  6. Step 6: Final answer
    x = 78,602.62

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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.