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Finding the Third Proportional to 7,511 and 11,693

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Solution

The third proportional to 7,511 and 11,693 is: 18,203.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,511 : 11,693 = 11,693 : x
  2. Step 2: Convert to fraction form
    7,511/11,693 = 11,693/x
  3. Step 3: Cross multiply
    7,511x = 11,693 × 11,693
  4. Step 4: Simplify right side
    7,511x = 136,726,249
  5. Step 5: Solve for x
    x = 136,726,249/7,511
  6. Step 6: Final answer
    x = 18,203.47

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.