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Finding the Fourth Proportional to 2,189.56, 3,020.56 and 1,481.65

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Solution

The fourth proportional to 2,189.56, 3,020.56 and 1,481.65 is: 2,043.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.56 : 3,020.56 = 1,481.65 : x
  2. Step 2: Convert to fraction form
    2,189.56/3,020.56 = 1,481.65/x
  3. Step 3: Cross multiply
    2,189.56x = 3,020.56 × 1,481.65
  4. Step 4: Simplify right side
    2,189.56x = 4,475,412.72
  5. Step 5: Solve for x
    x = 4,475,412.72/2,189.56
  6. Step 6: Final answer
    x = 2,043.98

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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.