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Finding the Third Proportional to 3,360 and 5,392

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Solution

The third proportional to 3,360 and 5,392 is: 8,652.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360 : 5,392 = 5,392 : x
  2. Step 2: Convert to fraction form
    3,360/5,392 = 5,392/x
  3. Step 3: Cross multiply
    3,360x = 5,392 × 5,392
  4. Step 4: Simplify right side
    3,360x = 29,073,664
  5. Step 5: Solve for x
    x = 29,073,664/3,360
  6. Step 6: Final answer
    x = 8,652.88

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.