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Finding the Third Proportional to 11,016 and 18,572

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Solution

The third proportional to 11,016 and 18,572 is: 31,310.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,016 : 18,572 = 18,572 : x
  2. Step 2: Convert to fraction form
    11,016/18,572 = 18,572/x
  3. Step 3: Cross multiply
    11,016x = 18,572 × 18,572
  4. Step 4: Simplify right side
    11,016x = 344,919,184
  5. Step 5: Solve for x
    x = 344,919,184/11,016
  6. Step 6: Final answer
    x = 31,310.75

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Why These Related Problems?

These problems maintain the same ratio (1.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.