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Finding the Third Proportional to 9,742 and 15,882

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Solution

The third proportional to 9,742 and 15,882 is: 25,891.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,742 : 15,882 = 15,882 : x
  2. Step 2: Convert to fraction form
    9,742/15,882 = 15,882/x
  3. Step 3: Cross multiply
    9,742x = 15,882 × 15,882
  4. Step 4: Simplify right side
    9,742x = 252,237,924
  5. Step 5: Solve for x
    x = 252,237,924/9,742
  6. Step 6: Final answer
    x = 25,891.80

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.