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Finding the Third Proportional to 791.63 and 1,731.63

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Solution

The third proportional to 791.63 and 1,731.63 is: 3,787.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    791.63 : 1,731.63 = 1,731.63 : x
  2. Step 2: Convert to fraction form
    791.63/1,731.63 = 1,731.63/x
  3. Step 3: Cross multiply
    791.63x = 1,731.63 × 1,731.63
  4. Step 4: Simplify right side
    791.63x = 2,998,525.14
  5. Step 5: Solve for x
    x = 2,998,525.14/791.63
  6. Step 6: Final answer
    x = 3,787.81

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.