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Finding the Third Proportional to 5,775.75 and 8,721

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Solution

The third proportional to 5,775.75 and 8,721 is: 13,168.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,775.75 : 8,721 = 8,721 : x
  2. Step 2: Convert to fraction form
    5,775.75/8,721 = 8,721/x
  3. Step 3: Cross multiply
    5,775.75x = 8,721 × 8,721
  4. Step 4: Simplify right side
    5,775.75x = 76,055,841
  5. Step 5: Solve for x
    x = 76,055,841/5,775.75
  6. Step 6: Final answer
    x = 13,168.13

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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.