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Finding the Third Proportional to 191.75 and 424

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Solution

The third proportional to 191.75 and 424 is: 937.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.75 : 424 = 424 : x
  2. Step 2: Convert to fraction form
    191.75/424 = 424/x
  3. Step 3: Cross multiply
    191.75x = 424 × 424
  4. Step 4: Simplify right side
    191.75x = 179,776
  5. Step 5: Solve for x
    x = 179,776/191.75
  6. Step 6: Final answer
    x = 937.55

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.