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Finding the Third Proportional to 762.75 and 936

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Solution

The third proportional to 762.75 and 936 is: 1,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    762.75 : 936 = 936 : x
  2. Step 2: Convert to fraction form
    762.75/936 = 936/x
  3. Step 3: Cross multiply
    762.75x = 936 × 936
  4. Step 4: Simplify right side
    762.75x = 876,096
  5. Step 5: Solve for x
    x = 876,096/762.75
  6. Step 6: Final answer
    x = 1,148.60

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Why These Related Problems?

These problems maintain the same ratio (1.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.