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Finding the Fourth Proportional to 6,650.75, 9,177.61 and 3,666.61

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Solution

The fourth proportional to 6,650.75, 9,177.61 and 3,666.61 is: 5,059.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,650.75 : 9,177.61 = 3,666.61 : x
  2. Step 2: Convert to fraction form
    6,650.75/9,177.61 = 3,666.61/x
  3. Step 3: Cross multiply
    6,650.75x = 9,177.61 × 3,666.61
  4. Step 4: Simplify right side
    6,650.75x = 33,650,716.60
  5. Step 5: Solve for x
    x = 33,650,716.60/6,650.75
  6. Step 6: Final answer
    x = 5,059.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.