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Finding the Third Proportional to 18,301.50 and 20,466

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Solution

The third proportional to 18,301.50 and 20,466 is: 22,886.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,301.50 : 20,466 = 20,466 : x
  2. Step 2: Convert to fraction form
    18,301.50/20,466 = 20,466/x
  3. Step 3: Cross multiply
    18,301.50x = 20,466 × 20,466
  4. Step 4: Simplify right side
    18,301.50x = 418,857,156
  5. Step 5: Solve for x
    x = 418,857,156/18,301.50
  6. Step 6: Final answer
    x = 22,886.49

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Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.