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Finding the Fourth Proportional to 4,928.94, 7,390.62 and 2,003.81

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Solution

The fourth proportional to 4,928.94, 7,390.62 and 2,003.81 is: 3,004.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.94 : 7,390.62 = 2,003.81 : x
  2. Step 2: Convert to fraction form
    4,928.94/7,390.62 = 2,003.81/x
  3. Step 3: Cross multiply
    4,928.94x = 7,390.62 × 2,003.81
  4. Step 4: Simplify right side
    4,928.94x = 14,809,361.31
  5. Step 5: Solve for x
    x = 14,809,361.31/4,928.94
  6. Step 6: Final answer
    x = 3,004.57

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Why These Related Problems?

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