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Finding the Third Proportional to 20,041 and 28,486

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Solution

The third proportional to 20,041 and 28,486 is: 40,489.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,041 : 28,486 = 28,486 : x
  2. Step 2: Convert to fraction form
    20,041/28,486 = 28,486/x
  3. Step 3: Cross multiply
    20,041x = 28,486 × 28,486
  4. Step 4: Simplify right side
    20,041x = 811,452,196
  5. Step 5: Solve for x
    x = 811,452,196/20,041
  6. Step 6: Final answer
    x = 40,489.61

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.