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Finding the Fourth Proportional to 6,976, 10,464 and 2,112

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Solution

The fourth proportional to 6,976, 10,464 and 2,112 is: 3,168

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,976 : 10,464 = 2,112 : x
  2. Step 2: Convert to fraction form
    6,976/10,464 = 2,112/x
  3. Step 3: Cross multiply
    6,976x = 10,464 × 2,112
  4. Step 4: Simplify right side
    6,976x = 22,099,968
  5. Step 5: Solve for x
    x = 22,099,968/6,976
  6. Step 6: Final answer
    x = 3,168

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.