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Finding the Third Proportional to 4,119 and 5,469.75

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Solution

The third proportional to 4,119 and 5,469.75 is: 7,263.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119 : 5,469.75 = 5,469.75 : x
  2. Step 2: Convert to fraction form
    4,119/5,469.75 = 5,469.75/x
  3. Step 3: Cross multiply
    4,119x = 5,469.75 × 5,469.75
  4. Step 4: Simplify right side
    4,119x = 29,918,165.06
  5. Step 5: Solve for x
    x = 29,918,165.06/4,119
  6. Step 6: Final answer
    x = 7,263.45

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.