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Finding the Third Proportional to 7,222 and 9,756

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Solution

The third proportional to 7,222 and 9,756 is: 13,179.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,222 : 9,756 = 9,756 : x
  2. Step 2: Convert to fraction form
    7,222/9,756 = 9,756/x
  3. Step 3: Cross multiply
    7,222x = 9,756 × 9,756
  4. Step 4: Simplify right side
    7,222x = 95,179,536
  5. Step 5: Solve for x
    x = 95,179,536/7,222
  6. Step 6: Final answer
    x = 13,179.11

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.