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Finding the Third Proportional to 3,516 and 7,725

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Solution

The third proportional to 3,516 and 7,725 is: 16,972.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,516 : 7,725 = 7,725 : x
  2. Step 2: Convert to fraction form
    3,516/7,725 = 7,725/x
  3. Step 3: Cross multiply
    3,516x = 7,725 × 7,725
  4. Step 4: Simplify right side
    3,516x = 59,675,625
  5. Step 5: Solve for x
    x = 59,675,625/3,516
  6. Step 6: Final answer
    x = 16,972.59

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.