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Finding the Third Proportional to 20,358.75 and 29,808.75

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Solution

The third proportional to 20,358.75 and 29,808.75 is: 43,645.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358.75 : 29,808.75 = 29,808.75 : x
  2. Step 2: Convert to fraction form
    20,358.75/29,808.75 = 29,808.75/x
  3. Step 3: Cross multiply
    20,358.75x = 29,808.75 × 29,808.75
  4. Step 4: Simplify right side
    20,358.75x = 888,561,576.56
  5. Step 5: Solve for x
    x = 888,561,576.56/20,358.75
  6. Step 6: Final answer
    x = 43,645.19

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.