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Finding the Third Proportional to 2,186 and 4,174

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Solution

The third proportional to 2,186 and 4,174 is: 7,969.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186 : 4,174 = 4,174 : x
  2. Step 2: Convert to fraction form
    2,186/4,174 = 4,174/x
  3. Step 3: Cross multiply
    2,186x = 4,174 × 4,174
  4. Step 4: Simplify right side
    2,186x = 17,422,276
  5. Step 5: Solve for x
    x = 17,422,276/2,186
  6. Step 6: Final answer
    x = 7,969.93

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Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.