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Finding the Fourth Proportional to 3,276.86, 4,917.11 and 2,668.14

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Solution

The fourth proportional to 3,276.86, 4,917.11 and 2,668.14 is: 4,003.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,276.86 : 4,917.11 = 2,668.14 : x
  2. Step 2: Convert to fraction form
    3,276.86/4,917.11 = 2,668.14/x
  3. Step 3: Cross multiply
    3,276.86x = 4,917.11 × 2,668.14
  4. Step 4: Simplify right side
    3,276.86x = 13,119,524.53
  5. Step 5: Solve for x
    x = 13,119,524.53/3,276.86
  6. Step 6: Final answer
    x = 4,003.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.