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Finding the Fourth Proportional to 5,380.70, 8,073.33 and 2,917.22

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Solution

The fourth proportional to 5,380.70, 8,073.33 and 2,917.22 is: 4,377.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.70 : 8,073.33 = 2,917.22 : x
  2. Step 2: Convert to fraction form
    5,380.70/8,073.33 = 2,917.22/x
  3. Step 3: Cross multiply
    5,380.70x = 8,073.33 × 2,917.22
  4. Step 4: Simplify right side
    5,380.70x = 23,551,679.74
  5. Step 5: Solve for x
    x = 23,551,679.74/5,380.70
  6. Step 6: Final answer
    x = 4,377.07

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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.