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Finding the Third Proportional to 25.25 and 41.50

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Solution

The third proportional to 25.25 and 41.50 is: 68.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.25 : 41.50 = 41.50 : x
  2. Step 2: Convert to fraction form
    25.25/41.50 = 41.50/x
  3. Step 3: Cross multiply
    25.25x = 41.50 × 41.50
  4. Step 4: Simplify right side
    25.25x = 1,722.25
  5. Step 5: Solve for x
    x = 1,722.25/25.25
  6. Step 6: Final answer
    x = 68.21

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.