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Finding the Third Proportional to 191.75 and 411.75

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Solution

The third proportional to 191.75 and 411.75 is: 884.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.75 : 411.75 = 411.75 : x
  2. Step 2: Convert to fraction form
    191.75/411.75 = 411.75/x
  3. Step 3: Cross multiply
    191.75x = 411.75 × 411.75
  4. Step 4: Simplify right side
    191.75x = 169,538.06
  5. Step 5: Solve for x
    x = 169,538.06/191.75
  6. Step 6: Final answer
    x = 884.16

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.