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Finding the Fourth Proportional to 2,212.44, 3,319.11 and 752.01

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Solution

The fourth proportional to 2,212.44, 3,319.11 and 752.01 is: 1,128.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.44 : 3,319.11 = 752.01 : x
  2. Step 2: Convert to fraction form
    2,212.44/3,319.11 = 752.01/x
  3. Step 3: Cross multiply
    2,212.44x = 3,319.11 × 752.01
  4. Step 4: Simplify right side
    2,212.44x = 2,496,003.91
  5. Step 5: Solve for x
    x = 2,496,003.91/2,212.44
  6. Step 6: Final answer
    x = 1,128.17

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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.