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Finding the Third Proportional to 6,790 and 8,898

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Solution

The third proportional to 6,790 and 8,898 is: 11,660.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,790 : 8,898 = 8,898 : x
  2. Step 2: Convert to fraction form
    6,790/8,898 = 8,898/x
  3. Step 3: Cross multiply
    6,790x = 8,898 × 8,898
  4. Step 4: Simplify right side
    6,790x = 79,174,404
  5. Step 5: Solve for x
    x = 79,174,404/6,790
  6. Step 6: Final answer
    x = 11,660.44

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.