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Finding the Fourth Proportional to 7,404.60, 11,113.20 and 3,025.20

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Solution

The fourth proportional to 7,404.60, 11,113.20 and 3,025.20 is: 4,540.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,404.60 : 11,113.20 = 3,025.20 : x
  2. Step 2: Convert to fraction form
    7,404.60/11,113.20 = 3,025.20/x
  3. Step 3: Cross multiply
    7,404.60x = 11,113.20 × 3,025.20
  4. Step 4: Simplify right side
    7,404.60x = 33,619,652.64
  5. Step 5: Solve for x
    x = 33,619,652.64/7,404.60
  6. Step 6: Final answer
    x = 4,540.37

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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.