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Finding the Third Proportional to 4,691 and 7,475

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Solution

The third proportional to 4,691 and 7,475 is: 11,911.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,691 : 7,475 = 7,475 : x
  2. Step 2: Convert to fraction form
    4,691/7,475 = 7,475/x
  3. Step 3: Cross multiply
    4,691x = 7,475 × 7,475
  4. Step 4: Simplify right side
    4,691x = 55,875,625
  5. Step 5: Solve for x
    x = 55,875,625/4,691
  6. Step 6: Final answer
    x = 11,911.24

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.