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Finding the Third Proportional to 20,162.25 and 28,201.50

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Solution

The third proportional to 20,162.25 and 28,201.50 is: 39,446.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.25 : 28,201.50 = 28,201.50 : x
  2. Step 2: Convert to fraction form
    20,162.25/28,201.50 = 28,201.50/x
  3. Step 3: Cross multiply
    20,162.25x = 28,201.50 × 28,201.50
  4. Step 4: Simplify right side
    20,162.25x = 795,324,602.25
  5. Step 5: Solve for x
    x = 795,324,602.25/20,162.25
  6. Step 6: Final answer
    x = 39,446.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.