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Finding the Fourth Proportional to 3,685.69, 5,087.33 and 2,944.81

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Solution

The fourth proportional to 3,685.69, 5,087.33 and 2,944.81 is: 4,064.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685.69 : 5,087.33 = 2,944.81 : x
  2. Step 2: Convert to fraction form
    3,685.69/5,087.33 = 2,944.81/x
  3. Step 3: Cross multiply
    3,685.69x = 5,087.33 × 2,944.81
  4. Step 4: Simplify right side
    3,685.69x = 14,981,205.53
  5. Step 5: Solve for x
    x = 14,981,205.53/3,685.69
  6. Step 6: Final answer
    x = 4,064.69

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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.