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Finding the Third Proportional to 3,921.75 and 6,103.69

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Solution

The third proportional to 3,921.75 and 6,103.69 is: 9,499.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.75 : 6,103.69 = 6,103.69 : x
  2. Step 2: Convert to fraction form
    3,921.75/6,103.69 = 6,103.69/x
  3. Step 3: Cross multiply
    3,921.75x = 6,103.69 × 6,103.69
  4. Step 4: Simplify right side
    3,921.75x = 37,255,001.10
  5. Step 5: Solve for x
    x = 37,255,001.10/3,921.75
  6. Step 6: Final answer
    x = 9,499.59

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.