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Finding the Fourth Proportional to 3,266.40, 4,899.60 and 2,796.60

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Solution

The fourth proportional to 3,266.40, 4,899.60 and 2,796.60 is: 4,194.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,266.40 : 4,899.60 = 2,796.60 : x
  2. Step 2: Convert to fraction form
    3,266.40/4,899.60 = 2,796.60/x
  3. Step 3: Cross multiply
    3,266.40x = 4,899.60 × 2,796.60
  4. Step 4: Simplify right side
    3,266.40x = 13,702,221.36
  5. Step 5: Solve for x
    x = 13,702,221.36/3,266.40
  6. Step 6: Final answer
    x = 4,194.90

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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.