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Finding the Third Proportional to 27,714 and 39,930

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Solution

The third proportional to 27,714 and 39,930 is: 57,530.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,714 : 39,930 = 39,930 : x
  2. Step 2: Convert to fraction form
    27,714/39,930 = 39,930/x
  3. Step 3: Cross multiply
    27,714x = 39,930 × 39,930
  4. Step 4: Simplify right side
    27,714x = 1,594,404,900
  5. Step 5: Solve for x
    x = 1,594,404,900/27,714
  6. Step 6: Final answer
    x = 57,530.67

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.