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Finding the Third Proportional to 91.60 and 201.71

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Solution

The third proportional to 91.60 and 201.71 is: 444.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    91.60 : 201.71 = 201.71 : x
  2. Step 2: Convert to fraction form
    91.60/201.71 = 201.71/x
  3. Step 3: Cross multiply
    91.60x = 201.71 × 201.71
  4. Step 4: Simplify right side
    91.60x = 40,686.51
  5. Step 5: Solve for x
    x = 40,686.51/91.60
  6. Step 6: Final answer
    x = 444.18

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.