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Finding the Fourth Proportional to 2,003.72, 2,765.15 and 1,119.71

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Solution

The fourth proportional to 2,003.72, 2,765.15 and 1,119.71 is: 1,545.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,003.72 : 2,765.15 = 1,119.71 : x
  2. Step 2: Convert to fraction form
    2,003.72/2,765.15 = 1,119.71/x
  3. Step 3: Cross multiply
    2,003.72x = 2,765.15 × 1,119.71
  4. Step 4: Simplify right side
    2,003.72x = 3,096,146.68
  5. Step 5: Solve for x
    x = 3,096,146.68/2,003.72
  6. Step 6: Final answer
    x = 1,545.20

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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.