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Finding the Fourth Proportional to 8,531.01, 11,773.89 and 5,173.97

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Solution

The fourth proportional to 8,531.01, 11,773.89 and 5,173.97 is: 7,140.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.01 : 11,773.89 = 5,173.97 : x
  2. Step 2: Convert to fraction form
    8,531.01/11,773.89 = 5,173.97/x
  3. Step 3: Cross multiply
    8,531.01x = 11,773.89 × 5,173.97
  4. Step 4: Simplify right side
    8,531.01x = 60,917,694.77
  5. Step 5: Solve for x
    x = 60,917,694.77/8,531.01
  6. Step 6: Final answer
    x = 7,140.74

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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.