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Finding the Third Proportional to 27,736 and 36,420

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Solution

The third proportional to 27,736 and 36,420 is: 47,822.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,736 : 36,420 = 36,420 : x
  2. Step 2: Convert to fraction form
    27,736/36,420 = 36,420/x
  3. Step 3: Cross multiply
    27,736x = 36,420 × 36,420
  4. Step 4: Simplify right side
    27,736x = 1,326,416,400
  5. Step 5: Solve for x
    x = 1,326,416,400/27,736
  6. Step 6: Final answer
    x = 47,822.92

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.