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Finding the Third Proportional to 8,708 and 18,196

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Solution

The third proportional to 8,708 and 18,196 is: 38,021.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708 : 18,196 = 18,196 : x
  2. Step 2: Convert to fraction form
    8,708/18,196 = 18,196/x
  3. Step 3: Cross multiply
    8,708x = 18,196 × 18,196
  4. Step 4: Simplify right side
    8,708x = 331,094,416
  5. Step 5: Solve for x
    x = 331,094,416/8,708
  6. Step 6: Final answer
    x = 38,021.87

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.