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Finding the Third Proportional to 18,450.75 and 38,214.38

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Solution

The third proportional to 18,450.75 and 38,214.38 is: 79,147.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,450.75 : 38,214.38 = 38,214.38 : x
  2. Step 2: Convert to fraction form
    18,450.75/38,214.38 = 38,214.38/x
  3. Step 3: Cross multiply
    18,450.75x = 38,214.38 × 38,214.38
  4. Step 4: Simplify right side
    18,450.75x = 1,460,338,456.64
  5. Step 5: Solve for x
    x = 1,460,338,456.64/18,450.75
  6. Step 6: Final answer
    x = 79,147.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.