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Finding the Fourth Proportional to 3,742.05, 5,611.11 and 1,662.68

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Solution

The fourth proportional to 3,742.05, 5,611.11 and 1,662.68 is: 2,493.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.05 : 5,611.11 = 1,662.68 : x
  2. Step 2: Convert to fraction form
    3,742.05/5,611.11 = 1,662.68/x
  3. Step 3: Cross multiply
    3,742.05x = 5,611.11 × 1,662.68
  4. Step 4: Simplify right side
    3,742.05x = 9,329,452.32
  5. Step 5: Solve for x
    x = 9,329,452.32/3,742.05
  6. Step 6: Final answer
    x = 2,493.14

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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.