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Finding the Fourth Proportional to 18,238.70, 27,361.29 and 6,230.20

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Solution

The fourth proportional to 18,238.70, 27,361.29 and 6,230.20 is: 9,346.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,238.70 : 27,361.29 = 6,230.20 : x
  2. Step 2: Convert to fraction form
    18,238.70/27,361.29 = 6,230.20/x
  3. Step 3: Cross multiply
    18,238.70x = 27,361.29 × 6,230.20
  4. Step 4: Simplify right side
    18,238.70x = 170,466,315.22
  5. Step 5: Solve for x
    x = 170,466,315.22/18,238.70
  6. Step 6: Final answer
    x = 9,346.41

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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.