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Finding the Third Proportional to 766 and 903

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Solution

The third proportional to 766 and 903 is: 1,064.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    766 : 903 = 903 : x
  2. Step 2: Convert to fraction form
    766/903 = 903/x
  3. Step 3: Cross multiply
    766x = 903 × 903
  4. Step 4: Simplify right side
    766x = 815,409
  5. Step 5: Solve for x
    x = 815,409/766
  6. Step 6: Final answer
    x = 1,064.50

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.