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Finding the Fourth Proportional to 7,259.67, 10,891.91 and 3,099.60

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Solution

The fourth proportional to 7,259.67, 10,891.91 and 3,099.60 is: 4,650.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,259.67 : 10,891.91 = 3,099.60 : x
  2. Step 2: Convert to fraction form
    7,259.67/10,891.91 = 3,099.60/x
  3. Step 3: Cross multiply
    7,259.67x = 10,891.91 × 3,099.60
  4. Step 4: Simplify right side
    7,259.67x = 33,760,571.99
  5. Step 5: Solve for x
    x = 33,760,571.99/7,259.67
  6. Step 6: Final answer
    x = 4,650.43

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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.