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Finding the Third Proportional to 759.38 and 1,634.63

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Solution

The third proportional to 759.38 and 1,634.63 is: 3,518.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    759.38 : 1,634.63 = 1,634.63 : x
  2. Step 2: Convert to fraction form
    759.38/1,634.63 = 1,634.63/x
  3. Step 3: Cross multiply
    759.38x = 1,634.63 × 1,634.63
  4. Step 4: Simplify right side
    759.38x = 2,671,998.89
  5. Step 5: Solve for x
    x = 2,671,998.89/759.38
  6. Step 6: Final answer
    x = 3,518.68

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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.