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Finding the Third Proportional to 3,924 and 5,736

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Solution

The third proportional to 3,924 and 5,736 is: 8,384.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924 : 5,736 = 5,736 : x
  2. Step 2: Convert to fraction form
    3,924/5,736 = 5,736/x
  3. Step 3: Cross multiply
    3,924x = 5,736 × 5,736
  4. Step 4: Simplify right side
    3,924x = 32,901,696
  5. Step 5: Solve for x
    x = 32,901,696/3,924
  6. Step 6: Final answer
    x = 8,384.73

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.