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Finding the Third Proportional to 13,785 and 30,234

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Solution

The third proportional to 13,785 and 30,234 is: 66,310.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785 : 30,234 = 30,234 : x
  2. Step 2: Convert to fraction form
    13,785/30,234 = 30,234/x
  3. Step 3: Cross multiply
    13,785x = 30,234 × 30,234
  4. Step 4: Simplify right side
    13,785x = 914,094,756
  5. Step 5: Solve for x
    x = 914,094,756/13,785
  6. Step 6: Final answer
    x = 66,310.83

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.