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Finding the Fourth Proportional to 7,375.77, 11,065.62 and 3,216.11

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Solution

The fourth proportional to 7,375.77, 11,065.62 and 3,216.11 is: 4,825.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,375.77 : 11,065.62 = 3,216.11 : x
  2. Step 2: Convert to fraction form
    7,375.77/11,065.62 = 3,216.11/x
  3. Step 3: Cross multiply
    7,375.77x = 11,065.62 × 3,216.11
  4. Step 4: Simplify right side
    7,375.77x = 35,588,251.14
  5. Step 5: Solve for x
    x = 35,588,251.14/7,375.77
  6. Step 6: Final answer
    x = 4,825.03

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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.