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Finding the Third Proportional to 20,439 and 44,556

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Solution

The third proportional to 20,439 and 44,556 is: 97,129.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,439 : 44,556 = 44,556 : x
  2. Step 2: Convert to fraction form
    20,439/44,556 = 44,556/x
  3. Step 3: Cross multiply
    20,439x = 44,556 × 44,556
  4. Step 4: Simplify right side
    20,439x = 1,985,237,136
  5. Step 5: Solve for x
    x = 1,985,237,136/20,439
  6. Step 6: Final answer
    x = 97,129.86

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.