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Finding the Third Proportional to 20,451 and 28,941

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Solution

The third proportional to 20,451 and 28,941 is: 40,955.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,451 : 28,941 = 28,941 : x
  2. Step 2: Convert to fraction form
    20,451/28,941 = 28,941/x
  3. Step 3: Cross multiply
    20,451x = 28,941 × 28,941
  4. Step 4: Simplify right side
    20,451x = 837,581,481
  5. Step 5: Solve for x
    x = 837,581,481/20,451
  6. Step 6: Final answer
    x = 40,955.53

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.