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Finding the Fourth Proportional to 19,481.98, 26,884.73 and 10,984.12

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Solution

The fourth proportional to 19,481.98, 26,884.73 and 10,984.12 is: 15,157.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,481.98 : 26,884.73 = 10,984.12 : x
  2. Step 2: Convert to fraction form
    19,481.98/26,884.73 = 10,984.12/x
  3. Step 3: Cross multiply
    19,481.98x = 26,884.73 × 10,984.12
  4. Step 4: Simplify right side
    19,481.98x = 295,305,100.49
  5. Step 5: Solve for x
    x = 295,305,100.49/19,481.98
  6. Step 6: Final answer
    x = 15,157.86

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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.