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Finding the Third Proportional to 20,427.19 and 41,674.50

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Solution

The third proportional to 20,427.19 and 41,674.50 is: 85,022.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,427.19 : 41,674.50 = 41,674.50 : x
  2. Step 2: Convert to fraction form
    20,427.19/41,674.50 = 41,674.50/x
  3. Step 3: Cross multiply
    20,427.19x = 41,674.50 × 41,674.50
  4. Step 4: Simplify right side
    20,427.19x = 1,736,763,950.25
  5. Step 5: Solve for x
    x = 1,736,763,950.25/20,427.19
  6. Step 6: Final answer
    x = 85,022.18

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.