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Finding the Fourth Proportional to 18,238.76, 27,343.25 and 5,750.99

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Solution

The fourth proportional to 18,238.76, 27,343.25 and 5,750.99 is: 8,621.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,238.76 : 27,343.25 = 5,750.99 : x
  2. Step 2: Convert to fraction form
    18,238.76/27,343.25 = 5,750.99/x
  3. Step 3: Cross multiply
    18,238.76x = 27,343.25 × 5,750.99
  4. Step 4: Simplify right side
    18,238.76x = 157,250,757.32
  5. Step 5: Solve for x
    x = 157,250,757.32/18,238.76
  6. Step 6: Final answer
    x = 8,621.79

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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.