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Finding the Fourth Proportional to 11,481.21, 15,850.44 and 7,237.71

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Solution

The fourth proportional to 11,481.21, 15,850.44 and 7,237.71 is: 9,992.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,481.21 : 15,850.44 = 7,237.71 : x
  2. Step 2: Convert to fraction form
    11,481.21/15,850.44 = 7,237.71/x
  3. Step 3: Cross multiply
    11,481.21x = 15,850.44 × 7,237.71
  4. Step 4: Simplify right side
    11,481.21x = 114,720,888.09
  5. Step 5: Solve for x
    x = 114,720,888.09/11,481.21
  6. Step 6: Final answer
    x = 9,992.06

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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.