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Finding the Third Proportional to 15,947 and 34,621

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Solution

The third proportional to 15,947 and 34,621 is: 75,162.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,947 : 34,621 = 34,621 : x
  2. Step 2: Convert to fraction form
    15,947/34,621 = 34,621/x
  3. Step 3: Cross multiply
    15,947x = 34,621 × 34,621
  4. Step 4: Simplify right side
    15,947x = 1,198,613,641
  5. Step 5: Solve for x
    x = 1,198,613,641/15,947
  6. Step 6: Final answer
    x = 75,162.33

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.