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Finding the Third Proportional to 5,930 and 7,912

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Solution

The third proportional to 5,930 and 7,912 is: 10,556.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,930 : 7,912 = 7,912 : x
  2. Step 2: Convert to fraction form
    5,930/7,912 = 7,912/x
  3. Step 3: Cross multiply
    5,930x = 7,912 × 7,912
  4. Step 4: Simplify right side
    5,930x = 62,599,744
  5. Step 5: Solve for x
    x = 62,599,744/5,930
  6. Step 6: Final answer
    x = 10,556.45

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.