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Finding the Third Proportional to 337.75 and 651.76

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Solution

The third proportional to 337.75 and 651.76 is: 1,257.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.75 : 651.76 = 651.76 : x
  2. Step 2: Convert to fraction form
    337.75/651.76 = 651.76/x
  3. Step 3: Cross multiply
    337.75x = 651.76 × 651.76
  4. Step 4: Simplify right side
    337.75x = 424,793.34
  5. Step 5: Solve for x
    x = 424,793.34/337.75
  6. Step 6: Final answer
    x = 1,257.73

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Why These Related Problems?

These problems maintain the same ratio (1.93) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.