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Finding the Fourth Proportional to 4,928.82, 7,398.66 and 4,910.54

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Solution

The fourth proportional to 4,928.82, 7,398.66 and 4,910.54 is: 7,371.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.82 : 7,398.66 = 4,910.54 : x
  2. Step 2: Convert to fraction form
    4,928.82/7,398.66 = 4,910.54/x
  3. Step 3: Cross multiply
    4,928.82x = 7,398.66 × 4,910.54
  4. Step 4: Simplify right side
    4,928.82x = 36,331,415.88
  5. Step 5: Solve for x
    x = 36,331,415.88/4,928.82
  6. Step 6: Final answer
    x = 7,371.22

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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.