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Finding the Third Proportional to 18,911.25 and 25,695.75

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Solution

The third proportional to 18,911.25 and 25,695.75 is: 34,914.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,911.25 : 25,695.75 = 25,695.75 : x
  2. Step 2: Convert to fraction form
    18,911.25/25,695.75 = 25,695.75/x
  3. Step 3: Cross multiply
    18,911.25x = 25,695.75 × 25,695.75
  4. Step 4: Simplify right side
    18,911.25x = 660,271,568.06
  5. Step 5: Solve for x
    x = 660,271,568.06/18,911.25
  6. Step 6: Final answer
    x = 34,914.22

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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.