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Finding the Third Proportional to 1,328 and 2,064

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Solution

The third proportional to 1,328 and 2,064 is: 3,207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328 : 2,064 = 2,064 : x
  2. Step 2: Convert to fraction form
    1,328/2,064 = 2,064/x
  3. Step 3: Cross multiply
    1,328x = 2,064 × 2,064
  4. Step 4: Simplify right side
    1,328x = 4,260,096
  5. Step 5: Solve for x
    x = 4,260,096/1,328
  6. Step 6: Final answer
    x = 3,207.90

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.