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Finding the Fourth Proportional to 8,991.83, 13,494.80 and 6,237.88

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Solution

The fourth proportional to 8,991.83, 13,494.80 and 6,237.88 is: 9,361.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.83 : 13,494.80 = 6,237.88 : x
  2. Step 2: Convert to fraction form
    8,991.83/13,494.80 = 6,237.88/x
  3. Step 3: Cross multiply
    8,991.83x = 13,494.80 × 6,237.88
  4. Step 4: Simplify right side
    8,991.83x = 84,178,943.02
  5. Step 5: Solve for x
    x = 84,178,943.02/8,991.83
  6. Step 6: Final answer
    x = 9,361.71

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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.