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Finding the Third Proportional to 18,923 and 40,326

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Solution

The third proportional to 18,923 and 40,326 is: 85,937.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,923 : 40,326 = 40,326 : x
  2. Step 2: Convert to fraction form
    18,923/40,326 = 40,326/x
  3. Step 3: Cross multiply
    18,923x = 40,326 × 40,326
  4. Step 4: Simplify right side
    18,923x = 1,626,186,276
  5. Step 5: Solve for x
    x = 1,626,186,276/18,923
  6. Step 6: Final answer
    x = 85,937.02

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.