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Finding the Third Proportional to 6,121 and 13,213.75

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Solution

The third proportional to 6,121 and 13,213.75 is: 28,525.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121 : 13,213.75 = 13,213.75 : x
  2. Step 2: Convert to fraction form
    6,121/13,213.75 = 13,213.75/x
  3. Step 3: Cross multiply
    6,121x = 13,213.75 × 13,213.75
  4. Step 4: Simplify right side
    6,121x = 174,603,189.06
  5. Step 5: Solve for x
    x = 174,603,189.06/6,121
  6. Step 6: Final answer
    x = 28,525.27

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.