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Finding the Third Proportional to 5,728 and 6,560

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Solution

The third proportional to 5,728 and 6,560 is: 7,512.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728 : 6,560 = 6,560 : x
  2. Step 2: Convert to fraction form
    5,728/6,560 = 6,560/x
  3. Step 3: Cross multiply
    5,728x = 6,560 × 6,560
  4. Step 4: Simplify right side
    5,728x = 43,033,600
  5. Step 5: Solve for x
    x = 43,033,600/5,728
  6. Step 6: Final answer
    x = 7,512.85

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.