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Finding the Third Proportional to 20,276.81 and 27,123.19

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Solution

The third proportional to 20,276.81 and 27,123.19 is: 36,281.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,276.81 : 27,123.19 = 27,123.19 : x
  2. Step 2: Convert to fraction form
    20,276.81/27,123.19 = 27,123.19/x
  3. Step 3: Cross multiply
    20,276.81x = 27,123.19 × 27,123.19
  4. Step 4: Simplify right side
    20,276.81x = 735,667,300.16
  5. Step 5: Solve for x
    x = 735,667,300.16/20,276.81
  6. Step 6: Final answer
    x = 36,281.21

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.