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Finding the Third Proportional to 2,656 and 4,269

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Solution

The third proportional to 2,656 and 4,269 is: 6,861.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,656 : 4,269 = 4,269 : x
  2. Step 2: Convert to fraction form
    2,656/4,269 = 4,269/x
  3. Step 3: Cross multiply
    2,656x = 4,269 × 4,269
  4. Step 4: Simplify right side
    2,656x = 18,224,361
  5. Step 5: Solve for x
    x = 18,224,361/2,656
  6. Step 6: Final answer
    x = 6,861.58

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.