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Finding the Fourth Proportional to 4,976.72, 7,464.46 and 2,054.64

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Solution

The fourth proportional to 4,976.72, 7,464.46 and 2,054.64 is: 3,081.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,976.72 : 7,464.46 = 2,054.64 : x
  2. Step 2: Convert to fraction form
    4,976.72/7,464.46 = 2,054.64/x
  3. Step 3: Cross multiply
    4,976.72x = 7,464.46 × 2,054.64
  4. Step 4: Simplify right side
    4,976.72x = 15,336,778.09
  5. Step 5: Solve for x
    x = 15,336,778.09/4,976.72
  6. Step 6: Final answer
    x = 3,081.70

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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.