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Finding the Third Proportional to 3,333 and 7,151.25

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Solution

The third proportional to 3,333 and 7,151.25 is: 15,343.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,333 : 7,151.25 = 7,151.25 : x
  2. Step 2: Convert to fraction form
    3,333/7,151.25 = 7,151.25/x
  3. Step 3: Cross multiply
    3,333x = 7,151.25 × 7,151.25
  4. Step 4: Simplify right side
    3,333x = 51,140,376.56
  5. Step 5: Solve for x
    x = 51,140,376.56/3,333
  6. Step 6: Final answer
    x = 15,343.65

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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.