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Finding the Third Proportional to 2,736 and 7,104

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Solution

The third proportional to 2,736 and 7,104 is: 18,445.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,736 : 7,104 = 7,104 : x
  2. Step 2: Convert to fraction form
    2,736/7,104 = 7,104/x
  3. Step 3: Cross multiply
    2,736x = 7,104 × 7,104
  4. Step 4: Simplify right side
    2,736x = 50,466,816
  5. Step 5: Solve for x
    x = 50,466,816/2,736
  6. Step 6: Final answer
    x = 18,445.47

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Why These Related Problems?

These problems maintain the same ratio (2.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.