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Finding the Third Proportional to 20,120.91 and 27,326.81

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Solution

The third proportional to 20,120.91 and 27,326.81 is: 37,113.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,120.91 : 27,326.81 = 27,326.81 : x
  2. Step 2: Convert to fraction form
    20,120.91/27,326.81 = 27,326.81/x
  3. Step 3: Cross multiply
    20,120.91x = 27,326.81 × 27,326.81
  4. Step 4: Simplify right side
    20,120.91x = 746,754,681.41
  5. Step 5: Solve for x
    x = 746,754,681.41/20,120.91
  6. Step 6: Final answer
    x = 37,113.37

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.