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Finding the Fourth Proportional to 2,906.88, 4,360.32 and 1,174.32

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Solution

The fourth proportional to 2,906.88, 4,360.32 and 1,174.32 is: 1,761.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,906.88 : 4,360.32 = 1,174.32 : x
  2. Step 2: Convert to fraction form
    2,906.88/4,360.32 = 1,174.32/x
  3. Step 3: Cross multiply
    2,906.88x = 4,360.32 × 1,174.32
  4. Step 4: Simplify right side
    2,906.88x = 5,120,410.98
  5. Step 5: Solve for x
    x = 5,120,410.98/2,906.88
  6. Step 6: Final answer
    x = 1,761.48

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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.