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Finding the Third Proportional to 5,360 and 6,976

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Solution

The third proportional to 5,360 and 6,976 is: 9,079.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,360 : 6,976 = 6,976 : x
  2. Step 2: Convert to fraction form
    5,360/6,976 = 6,976/x
  3. Step 3: Cross multiply
    5,360x = 6,976 × 6,976
  4. Step 4: Simplify right side
    5,360x = 48,664,576
  5. Step 5: Solve for x
    x = 48,664,576/5,360
  6. Step 6: Final answer
    x = 9,079.21

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.