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Finding the Third Proportional to 7,906 and 11,132

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Solution

The third proportional to 7,906 and 11,132 is: 15,674.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,906 : 11,132 = 11,132 : x
  2. Step 2: Convert to fraction form
    7,906/11,132 = 11,132/x
  3. Step 3: Cross multiply
    7,906x = 11,132 × 11,132
  4. Step 4: Simplify right side
    7,906x = 123,921,424
  5. Step 5: Solve for x
    x = 123,921,424/7,906
  6. Step 6: Final answer
    x = 15,674.35

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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.