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Finding the Third Proportional to 9,288 and 19,924

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Solution

The third proportional to 9,288 and 19,924 is: 42,739.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,288 : 19,924 = 19,924 : x
  2. Step 2: Convert to fraction form
    9,288/19,924 = 19,924/x
  3. Step 3: Cross multiply
    9,288x = 19,924 × 19,924
  4. Step 4: Simplify right side
    9,288x = 396,965,776
  5. Step 5: Solve for x
    x = 396,965,776/9,288
  6. Step 6: Final answer
    x = 42,739.64

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.