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Finding the Third Proportional to 7,330 and 11,819

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Solution

The third proportional to 7,330 and 11,819 is: 19,057.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,330 : 11,819 = 11,819 : x
  2. Step 2: Convert to fraction form
    7,330/11,819 = 11,819/x
  3. Step 3: Cross multiply
    7,330x = 11,819 × 11,819
  4. Step 4: Simplify right side
    7,330x = 139,688,761
  5. Step 5: Solve for x
    x = 139,688,761/7,330
  6. Step 6: Final answer
    x = 19,057.13

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.