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Finding the Third Proportional to 12,291.75 and 20,341.13

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Solution

The third proportional to 12,291.75 and 20,341.13 is: 33,661.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,291.75 : 20,341.13 = 20,341.13 : x
  2. Step 2: Convert to fraction form
    12,291.75/20,341.13 = 20,341.13/x
  3. Step 3: Cross multiply
    12,291.75x = 20,341.13 × 20,341.13
  4. Step 4: Simplify right side
    12,291.75x = 413,761,366.27
  5. Step 5: Solve for x
    x = 413,761,366.27/12,291.75
  6. Step 6: Final answer
    x = 33,661.71

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.