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Finding the Fourth Proportional to 11,879.46, 17,814.15 and 3,560.66

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Solution

The fourth proportional to 11,879.46, 17,814.15 and 3,560.66 is: 5,339.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,879.46 : 17,814.15 = 3,560.66 : x
  2. Step 2: Convert to fraction form
    11,879.46/17,814.15 = 3,560.66/x
  3. Step 3: Cross multiply
    11,879.46x = 17,814.15 × 3,560.66
  4. Step 4: Simplify right side
    11,879.46x = 63,430,042.27
  5. Step 5: Solve for x
    x = 63,430,042.27/11,879.46
  6. Step 6: Final answer
    x = 5,339.47

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1.5x scale

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.