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Finding the Third Proportional to 91 and 163.50

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Solution

The third proportional to 91 and 163.50 is: 293.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91 : 163.50 = 163.50 : x
  2. Step 2: Convert to fraction form
    91/163.50 = 163.50/x
  3. Step 3: Cross multiply
    91x = 163.50 × 163.50
  4. Step 4: Simplify right side
    91x = 26,732.25
  5. Step 5: Solve for x
    x = 26,732.25/91
  6. Step 6: Final answer
    x = 293.76

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These problems maintain the same ratio (1.80) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.