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Finding the Third Proportional to 7,926 and 9,042

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Solution

The third proportional to 7,926 and 9,042 is: 10,315.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,926 : 9,042 = 9,042 : x
  2. Step 2: Convert to fraction form
    7,926/9,042 = 9,042/x
  3. Step 3: Cross multiply
    7,926x = 9,042 × 9,042
  4. Step 4: Simplify right side
    7,926x = 81,757,764
  5. Step 5: Solve for x
    x = 81,757,764/7,926
  6. Step 6: Final answer
    x = 10,315.14

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.