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Finding the Fourth Proportional to 7,491.11, 11,238.11 and 2,873.75

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Solution

The fourth proportional to 7,491.11, 11,238.11 and 2,873.75 is: 4,311.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,491.11 : 11,238.11 = 2,873.75 : x
  2. Step 2: Convert to fraction form
    7,491.11/11,238.11 = 2,873.75/x
  3. Step 3: Cross multiply
    7,491.11x = 11,238.11 × 2,873.75
  4. Step 4: Simplify right side
    7,491.11x = 32,295,518.61
  5. Step 5: Solve for x
    x = 32,295,518.61/7,491.11
  6. Step 6: Final answer
    x = 4,311.18

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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.