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Finding the Fourth Proportional to 6,648.42, 9,174.77 and 3,664.26

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Solution

The fourth proportional to 6,648.42, 9,174.77 and 3,664.26 is: 5,056.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,648.42 : 9,174.77 = 3,664.26 : x
  2. Step 2: Convert to fraction form
    6,648.42/9,174.77 = 3,664.26/x
  3. Step 3: Cross multiply
    6,648.42x = 9,174.77 × 3,664.26
  4. Step 4: Simplify right side
    6,648.42x = 33,618,742.72
  5. Step 5: Solve for x
    x = 33,618,742.72/6,648.42
  6. Step 6: Final answer
    x = 5,056.65

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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.