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Finding the Third Proportional to 2,980 and 6,730

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Solution

The third proportional to 2,980 and 6,730 is: 15,198.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980 : 6,730 = 6,730 : x
  2. Step 2: Convert to fraction form
    2,980/6,730 = 6,730/x
  3. Step 3: Cross multiply
    2,980x = 6,730 × 6,730
  4. Step 4: Simplify right side
    2,980x = 45,292,900
  5. Step 5: Solve for x
    x = 45,292,900/2,980
  6. Step 6: Final answer
    x = 15,198.96

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Why These Related Problems?

These problems maintain the same ratio (2.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.