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Finding the Fourth Proportional to 18,725.76, 25,796.39 and 16,028.37

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Solution

The fourth proportional to 18,725.76, 25,796.39 and 16,028.37 is: 22,080.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,725.76 : 25,796.39 = 16,028.37 : x
  2. Step 2: Convert to fraction form
    18,725.76/25,796.39 = 16,028.37/x
  3. Step 3: Cross multiply
    18,725.76x = 25,796.39 × 16,028.37
  4. Step 4: Simplify right side
    18,725.76x = 413,474,003.44
  5. Step 5: Solve for x
    x = 413,474,003.44/18,725.76
  6. Step 6: Final answer
    x = 22,080.49

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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.