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Finding the Fourth Proportional to 4,917.08, 7,378.32 and 3,453.32

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Solution

The fourth proportional to 4,917.08, 7,378.32 and 3,453.32 is: 5,181.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.08 : 7,378.32 = 3,453.32 : x
  2. Step 2: Convert to fraction form
    4,917.08/7,378.32 = 3,453.32/x
  3. Step 3: Cross multiply
    4,917.08x = 7,378.32 × 3,453.32
  4. Step 4: Simplify right side
    4,917.08x = 25,479,700.02
  5. Step 5: Solve for x
    x = 25,479,700.02/4,917.08
  6. Step 6: Final answer
    x = 5,181.88

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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.