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Finding the Third Proportional to 13,223.25 and 20,466

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Solution

The third proportional to 13,223.25 and 20,466 is: 31,675.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,223.25 : 20,466 = 20,466 : x
  2. Step 2: Convert to fraction form
    13,223.25/20,466 = 20,466/x
  3. Step 3: Cross multiply
    13,223.25x = 20,466 × 20,466
  4. Step 4: Simplify right side
    13,223.25x = 418,857,156
  5. Step 5: Solve for x
    x = 418,857,156/13,223.25
  6. Step 6: Final answer
    x = 31,675.81

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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.