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Finding the Third Proportional to 2,678 and 4,064

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Solution

The third proportional to 2,678 and 4,064 is: 6,167.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678 : 4,064 = 4,064 : x
  2. Step 2: Convert to fraction form
    2,678/4,064 = 4,064/x
  3. Step 3: Cross multiply
    2,678x = 4,064 × 4,064
  4. Step 4: Simplify right side
    2,678x = 16,516,096
  5. Step 5: Solve for x
    x = 16,516,096/2,678
  6. Step 6: Final answer
    x = 6,167.32

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.