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Finding the Third Proportional to 11,274 and 17,685

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Solution

The third proportional to 11,274 and 17,685 is: 27,741.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,274 : 17,685 = 17,685 : x
  2. Step 2: Convert to fraction form
    11,274/17,685 = 17,685/x
  3. Step 3: Cross multiply
    11,274x = 17,685 × 17,685
  4. Step 4: Simplify right side
    11,274x = 312,759,225
  5. Step 5: Solve for x
    x = 312,759,225/11,274
  6. Step 6: Final answer
    x = 27,741.64

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.