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Finding the Third Proportional to 3,104 and 7,130

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Solution

The third proportional to 3,104 and 7,130 is: 16,377.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,104 : 7,130 = 7,130 : x
  2. Step 2: Convert to fraction form
    3,104/7,130 = 7,130/x
  3. Step 3: Cross multiply
    3,104x = 7,130 × 7,130
  4. Step 4: Simplify right side
    3,104x = 50,836,900
  5. Step 5: Solve for x
    x = 50,836,900/3,104
  6. Step 6: Final answer
    x = 16,377.87

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.