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Finding the Third Proportional to 9,842 and 15,939

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Solution

The third proportional to 9,842 and 15,939 is: 25,813.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,842 : 15,939 = 15,939 : x
  2. Step 2: Convert to fraction form
    9,842/15,939 = 15,939/x
  3. Step 3: Cross multiply
    9,842x = 15,939 × 15,939
  4. Step 4: Simplify right side
    9,842x = 254,051,721
  5. Step 5: Solve for x
    x = 254,051,721/9,842
  6. Step 6: Final answer
    x = 25,813.02

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.