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Finding the Third Proportional to 18,249.75 and 30,291.75

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Solution

The third proportional to 18,249.75 and 30,291.75 is: 50,279.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,249.75 : 30,291.75 = 30,291.75 : x
  2. Step 2: Convert to fraction form
    18,249.75/30,291.75 = 30,291.75/x
  3. Step 3: Cross multiply
    18,249.75x = 30,291.75 × 30,291.75
  4. Step 4: Simplify right side
    18,249.75x = 917,590,118.06
  5. Step 5: Solve for x
    x = 917,590,118.06/18,249.75
  6. Step 6: Final answer
    x = 50,279.60

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.