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Finding the Fourth Proportional to 15,481.98, 23,222.94 and 5,621.24

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Solution

The fourth proportional to 15,481.98, 23,222.94 and 5,621.24 is: 8,431.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,481.98 : 23,222.94 = 5,621.24 : x
  2. Step 2: Convert to fraction form
    15,481.98/23,222.94 = 5,621.24/x
  3. Step 3: Cross multiply
    15,481.98x = 23,222.94 × 5,621.24
  4. Step 4: Simplify right side
    15,481.98x = 130,541,719.25
  5. Step 5: Solve for x
    x = 130,541,719.25/15,481.98
  6. Step 6: Final answer
    x = 8,431.85

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1.5x scale

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.