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Finding the Third Proportional to 1,510 and 3,508

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Solution

The third proportional to 1,510 and 3,508 is: 8,149.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510 : 3,508 = 3,508 : x
  2. Step 2: Convert to fraction form
    1,510/3,508 = 3,508/x
  3. Step 3: Cross multiply
    1,510x = 3,508 × 3,508
  4. Step 4: Simplify right side
    1,510x = 12,306,064
  5. Step 5: Solve for x
    x = 12,306,064/1,510
  6. Step 6: Final answer
    x = 8,149.71

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.