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Finding the Fourth Proportional to 11,745.77, 17,619.02 and 3,425.59

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Solution

The fourth proportional to 11,745.77, 17,619.02 and 3,425.59 is: 5,138.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,745.77 : 17,619.02 = 3,425.59 : x
  2. Step 2: Convert to fraction form
    11,745.77/17,619.02 = 3,425.59/x
  3. Step 3: Cross multiply
    11,745.77x = 17,619.02 × 3,425.59
  4. Step 4: Simplify right side
    11,745.77x = 60,355,433.50
  5. Step 5: Solve for x
    x = 60,355,433.50/11,745.77
  6. Step 6: Final answer
    x = 5,138.48

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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.