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Finding the Fourth Proportional to 7,659.33, 11,480.81 and 3,960.60

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Solution

The fourth proportional to 7,659.33, 11,480.81 and 3,960.60 is: 5,936.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,659.33 : 11,480.81 = 3,960.60 : x
  2. Step 2: Convert to fraction form
    7,659.33/11,480.81 = 3,960.60/x
  3. Step 3: Cross multiply
    7,659.33x = 11,480.81 × 3,960.60
  4. Step 4: Simplify right side
    7,659.33x = 45,470,876.28
  5. Step 5: Solve for x
    x = 45,470,876.28/7,659.33
  6. Step 6: Final answer
    x = 5,936.66

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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.