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Finding the Third Proportional to 3,308 and 3,692

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Solution

The third proportional to 3,308 and 3,692 is: 4,120.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,308 : 3,692 = 3,692 : x
  2. Step 2: Convert to fraction form
    3,308/3,692 = 3,692/x
  3. Step 3: Cross multiply
    3,308x = 3,692 × 3,692
  4. Step 4: Simplify right side
    3,308x = 13,630,864
  5. Step 5: Solve for x
    x = 13,630,864/3,308
  6. Step 6: Final answer
    x = 4,120.58

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Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.