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Finding the Fourth Proportional to 6,648.66, 9,175.57 and 3,664.49

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Solution

The fourth proportional to 6,648.66, 9,175.57 and 3,664.49 is: 5,057.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,648.66 : 9,175.57 = 3,664.49 : x
  2. Step 2: Convert to fraction form
    6,648.66/9,175.57 = 3,664.49/x
  3. Step 3: Cross multiply
    6,648.66x = 9,175.57 × 3,664.49
  4. Step 4: Simplify right side
    6,648.66x = 33,623,775.93
  5. Step 5: Solve for x
    x = 33,623,775.93/6,648.66
  6. Step 6: Final answer
    x = 5,057.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.