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Finding the Third Proportional to 796 and 1,664

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Solution

The third proportional to 796 and 1,664 is: 3,478.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    796 : 1,664 = 1,664 : x
  2. Step 2: Convert to fraction form
    796/1,664 = 1,664/x
  3. Step 3: Cross multiply
    796x = 1,664 × 1,664
  4. Step 4: Simplify right side
    796x = 2,768,896
  5. Step 5: Solve for x
    x = 2,768,896/796
  6. Step 6: Final answer
    x = 3,478.51

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.