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Finding the Fourth Proportional to 11,247.31, 15,523.65 and 6,531.31

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Solution

The fourth proportional to 11,247.31, 15,523.65 and 6,531.31 is: 9,014.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,247.31 : 15,523.65 = 6,531.31 : x
  2. Step 2: Convert to fraction form
    11,247.31/15,523.65 = 6,531.31/x
  3. Step 3: Cross multiply
    11,247.31x = 15,523.65 × 6,531.31
  4. Step 4: Simplify right side
    11,247.31x = 101,389,660.21
  5. Step 5: Solve for x
    x = 101,389,660.21/11,247.31
  6. Step 6: Final answer
    x = 9,014.57

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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.