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Finding the Third Proportional to 7,486 and 11,230

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Solution

The third proportional to 7,486 and 11,230 is: 16,846.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486 : 11,230 = 11,230 : x
  2. Step 2: Convert to fraction form
    7,486/11,230 = 11,230/x
  3. Step 3: Cross multiply
    7,486x = 11,230 × 11,230
  4. Step 4: Simplify right side
    7,486x = 126,112,900
  5. Step 5: Solve for x
    x = 126,112,900/7,486
  6. Step 6: Final answer
    x = 16,846.50

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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.