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Finding the Third Proportional to 3,256 and 3,664

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Solution

The third proportional to 3,256 and 3,664 is: 4,123.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,256 : 3,664 = 3,664 : x
  2. Step 2: Convert to fraction form
    3,256/3,664 = 3,664/x
  3. Step 3: Cross multiply
    3,256x = 3,664 × 3,664
  4. Step 4: Simplify right side
    3,256x = 13,424,896
  5. Step 5: Solve for x
    x = 13,424,896/3,256
  6. Step 6: Final answer
    x = 4,123.13

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Why These Related Problems?

These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.