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Finding the Third Proportional to 3,669.47 and 5,243.91

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Solution

The third proportional to 3,669.47 and 5,243.91 is: 7,493.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669.47 : 5,243.91 = 5,243.91 : x
  2. Step 2: Convert to fraction form
    3,669.47/5,243.91 = 5,243.91/x
  3. Step 3: Cross multiply
    3,669.47x = 5,243.91 × 5,243.91
  4. Step 4: Simplify right side
    3,669.47x = 27,498,552.76
  5. Step 5: Solve for x
    x = 27,498,552.76/3,669.47
  6. Step 6: Final answer
    x = 7,493.88

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.