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Finding the Third Proportional to 2,298 and 3,891

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Solution

The third proportional to 2,298 and 3,891 is: 6,588.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,298 : 3,891 = 3,891 : x
  2. Step 2: Convert to fraction form
    2,298/3,891 = 3,891/x
  3. Step 3: Cross multiply
    2,298x = 3,891 × 3,891
  4. Step 4: Simplify right side
    2,298x = 15,139,881
  5. Step 5: Solve for x
    x = 15,139,881/2,298
  6. Step 6: Final answer
    x = 6,588.29

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Why These Related Problems?

These problems maintain the same ratio (1.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.