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Finding the Third Proportional to 18,668.25 and 25,348.50

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Solution

The third proportional to 18,668.25 and 25,348.50 is: 34,419.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668.25 : 25,348.50 = 25,348.50 : x
  2. Step 2: Convert to fraction form
    18,668.25/25,348.50 = 25,348.50/x
  3. Step 3: Cross multiply
    18,668.25x = 25,348.50 × 25,348.50
  4. Step 4: Simplify right side
    18,668.25x = 642,546,452.25
  5. Step 5: Solve for x
    x = 642,546,452.25/18,668.25
  6. Step 6: Final answer
    x = 34,419.21

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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.