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Finding the Third Proportional to 7,924 and 10,286

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Solution

The third proportional to 7,924 and 10,286 is: 13,352.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,924 : 10,286 = 10,286 : x
  2. Step 2: Convert to fraction form
    7,924/10,286 = 10,286/x
  3. Step 3: Cross multiply
    7,924x = 10,286 × 10,286
  4. Step 4: Simplify right side
    7,924x = 105,801,796
  5. Step 5: Solve for x
    x = 105,801,796/7,924
  6. Step 6: Final answer
    x = 13,352.07

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.