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Finding the Fourth Proportional to 3,993.35, 5,511.47 and 2,422.22

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Solution

The fourth proportional to 3,993.35, 5,511.47 and 2,422.22 is: 3,343.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.35 : 5,511.47 = 2,422.22 : x
  2. Step 2: Convert to fraction form
    3,993.35/5,511.47 = 2,422.22/x
  3. Step 3: Cross multiply
    3,993.35x = 5,511.47 × 2,422.22
  4. Step 4: Simplify right side
    3,993.35x = 13,349,953.19
  5. Step 5: Solve for x
    x = 13,349,953.19/3,993.35
  6. Step 6: Final answer
    x = 3,343.05

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.