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Finding the Fourth Proportional to 7,182.96, 9,910.44 and 4,310.52

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Solution

The fourth proportional to 7,182.96, 9,910.44 and 4,310.52 is: 5,947.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182.96 : 9,910.44 = 4,310.52 : x
  2. Step 2: Convert to fraction form
    7,182.96/9,910.44 = 4,310.52/x
  3. Step 3: Cross multiply
    7,182.96x = 9,910.44 × 4,310.52
  4. Step 4: Simplify right side
    7,182.96x = 42,719,149.83
  5. Step 5: Solve for x
    x = 42,719,149.83/7,182.96
  6. Step 6: Final answer
    x = 5,947.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.