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Finding the Third Proportional to 7,751 and 11,097

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Solution

The third proportional to 7,751 and 11,097 is: 15,887.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751 : 11,097 = 11,097 : x
  2. Step 2: Convert to fraction form
    7,751/11,097 = 11,097/x
  3. Step 3: Cross multiply
    7,751x = 11,097 × 11,097
  4. Step 4: Simplify right side
    7,751x = 123,143,409
  5. Step 5: Solve for x
    x = 123,143,409/7,751
  6. Step 6: Final answer
    x = 15,887.42

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.