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Finding the Third Proportional to 20,411 and 31,526

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Solution

The third proportional to 20,411 and 31,526 is: 48,693.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,411 : 31,526 = 31,526 : x
  2. Step 2: Convert to fraction form
    20,411/31,526 = 31,526/x
  3. Step 3: Cross multiply
    20,411x = 31,526 × 31,526
  4. Step 4: Simplify right side
    20,411x = 993,888,676
  5. Step 5: Solve for x
    x = 993,888,676/20,411
  6. Step 6: Final answer
    x = 48,693.78

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.