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Finding the Third Proportional to 2,663 and 3,896

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Solution

The third proportional to 2,663 and 3,896 is: 5,699.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,663 : 3,896 = 3,896 : x
  2. Step 2: Convert to fraction form
    2,663/3,896 = 3,896/x
  3. Step 3: Cross multiply
    2,663x = 3,896 × 3,896
  4. Step 4: Simplify right side
    2,663x = 15,178,816
  5. Step 5: Solve for x
    x = 15,178,816/2,663
  6. Step 6: Final answer
    x = 5,699.89

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.