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Finding the Fourth Proportional to 2,917.62, 4,033.62 and 2,256.66

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Solution

The fourth proportional to 2,917.62, 4,033.62 and 2,256.66 is: 3,119.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.62 : 4,033.62 = 2,256.66 : x
  2. Step 2: Convert to fraction form
    2,917.62/4,033.62 = 2,256.66/x
  3. Step 3: Cross multiply
    2,917.62x = 4,033.62 × 2,256.66
  4. Step 4: Simplify right side
    2,917.62x = 9,102,508.91
  5. Step 5: Solve for x
    x = 9,102,508.91/2,917.62
  6. Step 6: Final answer
    x = 3,119.84

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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.