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Finding the Fourth Proportional to 4,000.68, 5,520.81 and 2,232.58

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Solution

The fourth proportional to 4,000.68, 5,520.81 and 2,232.58 is: 3,080.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,000.68 : 5,520.81 = 2,232.58 : x
  2. Step 2: Convert to fraction form
    4,000.68/5,520.81 = 2,232.58/x
  3. Step 3: Cross multiply
    4,000.68x = 5,520.81 × 2,232.58
  4. Step 4: Simplify right side
    4,000.68x = 12,325,649.99
  5. Step 5: Solve for x
    x = 12,325,649.99/4,000.68
  6. Step 6: Final answer
    x = 3,080.89

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