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Finding the Third Proportional to 4,782 and 7,175

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Solution

The third proportional to 4,782 and 7,175 is: 10,765.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,782 : 7,175 = 7,175 : x
  2. Step 2: Convert to fraction form
    4,782/7,175 = 7,175/x
  3. Step 3: Cross multiply
    4,782x = 7,175 × 7,175
  4. Step 4: Simplify right side
    4,782x = 51,480,625
  5. Step 5: Solve for x
    x = 51,480,625/4,782
  6. Step 6: Final answer
    x = 10,765.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.