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Finding the Fourth Proportional to 4,982.62, 7,474.37 and 2,515.86

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Solution

The fourth proportional to 4,982.62, 7,474.37 and 2,515.86 is: 3,774.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,982.62 : 7,474.37 = 2,515.86 : x
  2. Step 2: Convert to fraction form
    4,982.62/7,474.37 = 2,515.86/x
  3. Step 3: Cross multiply
    4,982.62x = 7,474.37 × 2,515.86
  4. Step 4: Simplify right side
    4,982.62x = 18,804,468.51
  5. Step 5: Solve for x
    x = 18,804,468.51/4,982.62
  6. Step 6: Final answer
    x = 3,774.01

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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.