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Finding the Third Proportional to 190 and 326.25

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Solution

The third proportional to 190 and 326.25 is: 560.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    190 : 326.25 = 326.25 : x
  2. Step 2: Convert to fraction form
    190/326.25 = 326.25/x
  3. Step 3: Cross multiply
    190x = 326.25 × 326.25
  4. Step 4: Simplify right side
    190x = 106,439.06
  5. Step 5: Solve for x
    x = 106,439.06/190
  6. Step 6: Final answer
    x = 560.21

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Why These Related Problems?

These problems maintain the same ratio (1.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.