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Finding the Third Proportional to 18,609.75 and 25,287.19

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Solution

The third proportional to 18,609.75 and 25,287.19 is: 34,360.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,609.75 : 25,287.19 = 25,287.19 : x
  2. Step 2: Convert to fraction form
    18,609.75/25,287.19 = 25,287.19/x
  3. Step 3: Cross multiply
    18,609.75x = 25,287.19 × 25,287.19
  4. Step 4: Simplify right side
    18,609.75x = 639,441,851.66
  5. Step 5: Solve for x
    x = 639,441,851.66/18,609.75
  6. Step 6: Final answer
    x = 34,360.58

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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.