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Finding the Fourth Proportional to 3,333.20, 4,599.60 and 2,007.20

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Solution

The fourth proportional to 3,333.20, 4,599.60 and 2,007.20 is: 2,769.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,333.20 : 4,599.60 = 2,007.20 : x
  2. Step 2: Convert to fraction form
    3,333.20/4,599.60 = 2,007.20/x
  3. Step 3: Cross multiply
    3,333.20x = 4,599.60 × 2,007.20
  4. Step 4: Simplify right side
    3,333.20x = 9,232,317.12
  5. Step 5: Solve for x
    x = 9,232,317.12/3,333.20
  6. Step 6: Final answer
    x = 2,769.81

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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.