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Finding the Fourth Proportional to 11,881.26, 17,832.06 and 6,621.57

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Solution

The fourth proportional to 11,881.26, 17,832.06 and 6,621.57 is: 9,938.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,881.26 : 17,832.06 = 6,621.57 : x
  2. Step 2: Convert to fraction form
    11,881.26/17,832.06 = 6,621.57/x
  3. Step 3: Cross multiply
    11,881.26x = 17,832.06 × 6,621.57
  4. Step 4: Simplify right side
    11,881.26x = 118,076,233.53
  5. Step 5: Solve for x
    x = 118,076,233.53/11,881.26
  6. Step 6: Final answer
    x = 9,938.02

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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.