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Finding the Third Proportional to 15,250 and 18,022

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Solution

The third proportional to 15,250 and 18,022 is: 21,297.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,250 : 18,022 = 18,022 : x
  2. Step 2: Convert to fraction form
    15,250/18,022 = 18,022/x
  3. Step 3: Cross multiply
    15,250x = 18,022 × 18,022
  4. Step 4: Simplify right side
    15,250x = 324,792,484
  5. Step 5: Solve for x
    x = 324,792,484/15,250
  6. Step 6: Final answer
    x = 21,297.87

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.