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Finding the Fourth Proportional to 18,481.97, 25,505.11 and 10,098.47

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Solution

The fourth proportional to 18,481.97, 25,505.11 and 10,098.47 is: 13,935.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,481.97 : 25,505.11 = 10,098.47 : x
  2. Step 2: Convert to fraction form
    18,481.97/25,505.11 = 10,098.47/x
  3. Step 3: Cross multiply
    18,481.97x = 25,505.11 × 10,098.47
  4. Step 4: Simplify right side
    18,481.97x = 257,562,537.69
  5. Step 5: Solve for x
    x = 257,562,537.69/18,481.97
  6. Step 6: Final answer
    x = 13,935.88

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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.