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Finding the Third Proportional to 20,196 and 27,808

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Solution

The third proportional to 20,196 and 27,808 is: 38,289.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,196 : 27,808 = 27,808 : x
  2. Step 2: Convert to fraction form
    20,196/27,808 = 27,808/x
  3. Step 3: Cross multiply
    20,196x = 27,808 × 27,808
  4. Step 4: Simplify right side
    20,196x = 773,284,864
  5. Step 5: Solve for x
    x = 773,284,864/20,196
  6. Step 6: Final answer
    x = 38,289.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.