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Finding the Fourth Proportional to 4,928.25, 7,375.05 and 3,080.25

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Solution

The fourth proportional to 4,928.25, 7,375.05 and 3,080.25 is: 4,609.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.25 : 7,375.05 = 3,080.25 : x
  2. Step 2: Convert to fraction form
    4,928.25/7,375.05 = 3,080.25/x
  3. Step 3: Cross multiply
    4,928.25x = 7,375.05 × 3,080.25
  4. Step 4: Simplify right side
    4,928.25x = 22,716,997.76
  5. Step 5: Solve for x
    x = 22,716,997.76/4,928.25
  6. Step 6: Final answer
    x = 4,609.55

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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.