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Finding the Third Proportional to 18,165 and 28,057

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Solution

The third proportional to 18,165 and 28,057 is: 43,335.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,165 : 28,057 = 28,057 : x
  2. Step 2: Convert to fraction form
    18,165/28,057 = 28,057/x
  3. Step 3: Cross multiply
    18,165x = 28,057 × 28,057
  4. Step 4: Simplify right side
    18,165x = 787,195,249
  5. Step 5: Solve for x
    x = 787,195,249/18,165
  6. Step 6: Final answer
    x = 43,335.82

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.