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Finding the Fourth Proportional to 2,100.51, 3,147.30 and 1,481.22

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Solution

The fourth proportional to 2,100.51, 3,147.30 and 1,481.22 is: 2,219.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100.51 : 3,147.30 = 1,481.22 : x
  2. Step 2: Convert to fraction form
    2,100.51/3,147.30 = 1,481.22/x
  3. Step 3: Cross multiply
    2,100.51x = 3,147.30 × 1,481.22
  4. Step 4: Simplify right side
    2,100.51x = 4,661,843.71
  5. Step 5: Solve for x
    x = 4,661,843.71/2,100.51
  6. Step 6: Final answer
    x = 2,219.39

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.