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Finding the Third Proportional to 3,079.50 and 3,399

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Solution

The third proportional to 3,079.50 and 3,399 is: 3,751.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.50 : 3,399 = 3,399 : x
  2. Step 2: Convert to fraction form
    3,079.50/3,399 = 3,399/x
  3. Step 3: Cross multiply
    3,079.50x = 3,399 × 3,399
  4. Step 4: Simplify right side
    3,079.50x = 11,553,201
  5. Step 5: Solve for x
    x = 11,553,201/3,079.50
  6. Step 6: Final answer
    x = 3,751.65

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.