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Finding the Fourth Proportional to 6,463.22, 8,919.15 and 3,668.54

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Solution

The fourth proportional to 6,463.22, 8,919.15 and 3,668.54 is: 5,062.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,463.22 : 8,919.15 = 3,668.54 : x
  2. Step 2: Convert to fraction form
    6,463.22/8,919.15 = 3,668.54/x
  3. Step 3: Cross multiply
    6,463.22x = 8,919.15 × 3,668.54
  4. Step 4: Simplify right side
    6,463.22x = 32,720,213.95
  5. Step 5: Solve for x
    x = 32,720,213.95/6,463.22
  6. Step 6: Final answer
    x = 5,062.53

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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.