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Finding the Fourth Proportional to 18,481.50, 25,505.10 and 10,098.54

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Solution

The fourth proportional to 18,481.50, 25,505.10 and 10,098.54 is: 13,936.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,481.50 : 25,505.10 = 10,098.54 : x
  2. Step 2: Convert to fraction form
    18,481.50/25,505.10 = 10,098.54/x
  3. Step 3: Cross multiply
    18,481.50x = 25,505.10 × 10,098.54
  4. Step 4: Simplify right side
    18,481.50x = 257,564,272.55
  5. Step 5: Solve for x
    x = 257,564,272.55/18,481.50
  6. Step 6: Final answer
    x = 13,936.33

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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.