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Finding the Fourth Proportional to 11,193.31, 15,447 and 6,157.54

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Solution

The fourth proportional to 11,193.31, 15,447 and 6,157.54 is: 8,497.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,193.31 : 15,447 = 6,157.54 : x
  2. Step 2: Convert to fraction form
    11,193.31/15,447 = 6,157.54/x
  3. Step 3: Cross multiply
    11,193.31x = 15,447 × 6,157.54
  4. Step 4: Simplify right side
    11,193.31x = 95,115,520.38
  5. Step 5: Solve for x
    x = 95,115,520.38/11,193.31
  6. Step 6: Final answer
    x = 8,497.53

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1.5x scale

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.