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Finding the Fourth Proportional to 11,993.55, 17,992.50 and 3,673.41

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Solution

The fourth proportional to 11,993.55, 17,992.50 and 3,673.41 is: 5,510.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,993.55 : 17,992.50 = 3,673.41 : x
  2. Step 2: Convert to fraction form
    11,993.55/17,992.50 = 3,673.41/x
  3. Step 3: Cross multiply
    11,993.55x = 17,992.50 × 3,673.41
  4. Step 4: Simplify right side
    11,993.55x = 66,093,829.43
  5. Step 5: Solve for x
    x = 66,093,829.43/11,993.55
  6. Step 6: Final answer
    x = 5,510.78

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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.