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Finding the Fourth Proportional to 11,866.83, 17,799.03 and 3,100.61

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Solution

The fourth proportional to 11,866.83, 17,799.03 and 3,100.61 is: 4,650.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,866.83 : 17,799.03 = 3,100.61 : x
  2. Step 2: Convert to fraction form
    11,866.83/17,799.03 = 3,100.61/x
  3. Step 3: Cross multiply
    11,866.83x = 17,799.03 × 3,100.61
  4. Step 4: Simplify right side
    11,866.83x = 55,187,761.41
  5. Step 5: Solve for x
    x = 55,187,761.41/11,866.83
  6. Step 6: Final answer
    x = 4,650.59

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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.