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Finding the Third Proportional to 3,823 and 5,383.75

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Solution

The third proportional to 3,823 and 5,383.75 is: 7,581.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,823 : 5,383.75 = 5,383.75 : x
  2. Step 2: Convert to fraction form
    3,823/5,383.75 = 5,383.75/x
  3. Step 3: Cross multiply
    3,823x = 5,383.75 × 5,383.75
  4. Step 4: Simplify right side
    3,823x = 28,984,764.06
  5. Step 5: Solve for x
    x = 28,984,764.06/3,823
  6. Step 6: Final answer
    x = 7,581.68

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.