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Finding the Third Proportional to 13,211 and 20,060

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Solution

The third proportional to 13,211 and 20,060 is: 30,459.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,211 : 20,060 = 20,060 : x
  2. Step 2: Convert to fraction form
    13,211/20,060 = 20,060/x
  3. Step 3: Cross multiply
    13,211x = 20,060 × 20,060
  4. Step 4: Simplify right side
    13,211x = 402,403,600
  5. Step 5: Solve for x
    x = 402,403,600/13,211
  6. Step 6: Final answer
    x = 30,459.74

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.