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Finding the Third Proportional to 27,820 and 36,756

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Solution

The third proportional to 27,820 and 36,756 is: 48,562.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,820 : 36,756 = 36,756 : x
  2. Step 2: Convert to fraction form
    27,820/36,756 = 36,756/x
  3. Step 3: Cross multiply
    27,820x = 36,756 × 36,756
  4. Step 4: Simplify right side
    27,820x = 1,351,003,536
  5. Step 5: Solve for x
    x = 1,351,003,536/27,820
  6. Step 6: Final answer
    x = 48,562.31

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.