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Finding the Third Proportional to 772.13 and 1,163.63

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Solution

The third proportional to 772.13 and 1,163.63 is: 1,753.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    772.13 : 1,163.63 = 1,163.63 : x
  2. Step 2: Convert to fraction form
    772.13/1,163.63 = 1,163.63/x
  3. Step 3: Cross multiply
    772.13x = 1,163.63 × 1,163.63
  4. Step 4: Simplify right side
    772.13x = 1,354,023.14
  5. Step 5: Solve for x
    x = 1,354,023.14/772.13
  6. Step 6: Final answer
    x = 1,753.63

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.