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Finding the Third Proportional to 5,791.50 and 8,712.56

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Solution

The third proportional to 5,791.50 and 8,712.56 is: 13,106.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,791.50 : 8,712.56 = 8,712.56 : x
  2. Step 2: Convert to fraction form
    5,791.50/8,712.56 = 8,712.56/x
  3. Step 3: Cross multiply
    5,791.50x = 8,712.56 × 8,712.56
  4. Step 4: Simplify right side
    5,791.50x = 75,908,745.32
  5. Step 5: Solve for x
    x = 75,908,745.32/5,791.50
  6. Step 6: Final answer
    x = 13,106.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.