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Finding the Third Proportional to 91.62 and 185.70

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Solution

The third proportional to 91.62 and 185.70 is: 376.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91.62 : 185.70 = 185.70 : x
  2. Step 2: Convert to fraction form
    91.62/185.70 = 185.70/x
  3. Step 3: Cross multiply
    91.62x = 185.70 × 185.70
  4. Step 4: Simplify right side
    91.62x = 34,482.75
  5. Step 5: Solve for x
    x = 34,482.75/91.62
  6. Step 6: Final answer
    x = 376.38

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.