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Finding the Fourth Proportional to 5,919.14, 8,891.60 and 3,580.25

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Solution

The fourth proportional to 5,919.14, 8,891.60 and 3,580.25 is: 5,378.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.14 : 8,891.60 = 3,580.25 : x
  2. Step 2: Convert to fraction form
    5,919.14/8,891.60 = 3,580.25/x
  3. Step 3: Cross multiply
    5,919.14x = 8,891.60 × 3,580.25
  4. Step 4: Simplify right side
    5,919.14x = 31,834,150.90
  5. Step 5: Solve for x
    x = 31,834,150.90/5,919.14
  6. Step 6: Final answer
    x = 5,378.17

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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.