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Finding the Fourth Proportional to 4,994.61, 7,480.24 and 3,947.59

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Solution

The fourth proportional to 4,994.61, 7,480.24 and 3,947.59 is: 5,912.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,994.61 : 7,480.24 = 3,947.59 : x
  2. Step 2: Convert to fraction form
    4,994.61/7,480.24 = 3,947.59/x
  3. Step 3: Cross multiply
    4,994.61x = 7,480.24 × 3,947.59
  4. Step 4: Simplify right side
    4,994.61x = 29,528,920.62
  5. Step 5: Solve for x
    x = 29,528,920.62/4,994.61
  6. Step 6: Final answer
    x = 5,912.16

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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.