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Finding the Third Proportional to 7,724 and 11,802

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Solution

The third proportional to 7,724 and 11,802 is: 18,033.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,724 : 11,802 = 11,802 : x
  2. Step 2: Convert to fraction form
    7,724/11,802 = 11,802/x
  3. Step 3: Cross multiply
    7,724x = 11,802 × 11,802
  4. Step 4: Simplify right side
    7,724x = 139,287,204
  5. Step 5: Solve for x
    x = 139,287,204/7,724
  6. Step 6: Final answer
    x = 18,033.04

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.