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Finding the Third Proportional to 3,511 and 7,543

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Solution

The third proportional to 3,511 and 7,543 is: 16,205.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511 : 7,543 = 7,543 : x
  2. Step 2: Convert to fraction form
    3,511/7,543 = 7,543/x
  3. Step 3: Cross multiply
    3,511x = 7,543 × 7,543
  4. Step 4: Simplify right side
    3,511x = 56,896,849
  5. Step 5: Solve for x
    x = 56,896,849/3,511
  6. Step 6: Final answer
    x = 16,205.31

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.