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Finding the Third Proportional to 7,158 and 16,719

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Solution

The third proportional to 7,158 and 16,719 is: 39,050.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158 : 16,719 = 16,719 : x
  2. Step 2: Convert to fraction form
    7,158/16,719 = 16,719/x
  3. Step 3: Cross multiply
    7,158x = 16,719 × 16,719
  4. Step 4: Simplify right side
    7,158x = 279,524,961
  5. Step 5: Solve for x
    x = 279,524,961/7,158
  6. Step 6: Final answer
    x = 39,050.71

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.