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Finding the Fourth Proportional to 2,216.50, 3,325.04 and 755.26

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Solution

The fourth proportional to 2,216.50, 3,325.04 and 755.26 is: 1,132.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,216.50 : 3,325.04 = 755.26 : x
  2. Step 2: Convert to fraction form
    2,216.50/3,325.04 = 755.26/x
  3. Step 3: Cross multiply
    2,216.50x = 3,325.04 × 755.26
  4. Step 4: Simplify right side
    2,216.50x = 2,511,269.71
  5. Step 5: Solve for x
    x = 2,511,269.71/2,216.50
  6. Step 6: Final answer
    x = 1,132.99

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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.