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Finding the Third Proportional to 20,246.63 and 31,698

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Solution

The third proportional to 20,246.63 and 31,698 is: 49,626.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,246.63 : 31,698 = 31,698 : x
  2. Step 2: Convert to fraction form
    20,246.63/31,698 = 31,698/x
  3. Step 3: Cross multiply
    20,246.63x = 31,698 × 31,698
  4. Step 4: Simplify right side
    20,246.63x = 1,004,763,204
  5. Step 5: Solve for x
    x = 1,004,763,204/20,246.63
  6. Step 6: Final answer
    x = 49,626.21

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.