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Finding the Fourth Proportional to 11,917.58, 17,874.07 and 3,595.66

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Solution

The fourth proportional to 11,917.58, 17,874.07 and 3,595.66 is: 5,392.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.58 : 17,874.07 = 3,595.66 : x
  2. Step 2: Convert to fraction form
    11,917.58/17,874.07 = 3,595.66/x
  3. Step 3: Cross multiply
    11,917.58x = 17,874.07 × 3,595.66
  4. Step 4: Simplify right side
    11,917.58x = 64,269,024.86
  5. Step 5: Solve for x
    x = 64,269,024.86/11,917.58
  6. Step 6: Final answer
    x = 5,392.79

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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.