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Finding the Fourth Proportional to 18,161.46, 27,236.93 and 7,065.68

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Solution

The fourth proportional to 18,161.46, 27,236.93 and 7,065.68 is: 10,596.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,161.46 : 27,236.93 = 7,065.68 : x
  2. Step 2: Convert to fraction form
    18,161.46/27,236.93 = 7,065.68/x
  3. Step 3: Cross multiply
    18,161.46x = 27,236.93 × 7,065.68
  4. Step 4: Simplify right side
    18,161.46x = 192,447,260.05
  5. Step 5: Solve for x
    x = 192,447,260.05/18,161.46
  6. Step 6: Final answer
    x = 10,596.46

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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.