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Finding the Fourth Proportional to 18,415.37, 27,628.44 and 5,935.12

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Solution

The fourth proportional to 18,415.37, 27,628.44 and 5,935.12 is: 8,904.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,415.37 : 27,628.44 = 5,935.12 : x
  2. Step 2: Convert to fraction form
    18,415.37/27,628.44 = 5,935.12/x
  3. Step 3: Cross multiply
    18,415.37x = 27,628.44 × 5,935.12
  4. Step 4: Simplify right side
    18,415.37x = 163,978,204.28
  5. Step 5: Solve for x
    x = 163,978,204.28/18,415.37
  6. Step 6: Final answer
    x = 8,904.42

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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.