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Finding the Third Proportional to 5,118 and 7,206

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Solution

The third proportional to 5,118 and 7,206 is: 10,145.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118 : 7,206 = 7,206 : x
  2. Step 2: Convert to fraction form
    5,118/7,206 = 7,206/x
  3. Step 3: Cross multiply
    5,118x = 7,206 × 7,206
  4. Step 4: Simplify right side
    5,118x = 51,926,436
  5. Step 5: Solve for x
    x = 51,926,436/5,118
  6. Step 6: Final answer
    x = 10,145.85

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.