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Finding the Third Proportional to 18,172 and 25,770

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Solution

The third proportional to 18,172 and 25,770 is: 36,544.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172 : 25,770 = 25,770 : x
  2. Step 2: Convert to fraction form
    18,172/25,770 = 25,770/x
  3. Step 3: Cross multiply
    18,172x = 25,770 × 25,770
  4. Step 4: Simplify right side
    18,172x = 664,092,900
  5. Step 5: Solve for x
    x = 664,092,900/18,172
  6. Step 6: Final answer
    x = 36,544.84

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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.