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Finding the Third Proportional to 20,156 and 43,556

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Solution

The third proportional to 20,156 and 43,556 is: 94,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156 : 43,556 = 43,556 : x
  2. Step 2: Convert to fraction form
    20,156/43,556 = 43,556/x
  3. Step 3: Cross multiply
    20,156x = 43,556 × 43,556
  4. Step 4: Simplify right side
    20,156x = 1,897,125,136
  5. Step 5: Solve for x
    x = 1,897,125,136/20,156
  6. Step 6: Final answer
    x = 94,122.10

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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.