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Finding the Fourth Proportional to 18,597.67, 27,900.61 and 6,121.53

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Solution

The fourth proportional to 18,597.67, 27,900.61 and 6,121.53 is: 9,183.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,597.67 : 27,900.61 = 6,121.53 : x
  2. Step 2: Convert to fraction form
    18,597.67/27,900.61 = 6,121.53/x
  3. Step 3: Cross multiply
    18,597.67x = 27,900.61 × 6,121.53
  4. Step 4: Simplify right side
    18,597.67x = 170,794,405.83
  5. Step 5: Solve for x
    x = 170,794,405.83/18,597.67
  6. Step 6: Final answer
    x = 9,183.65

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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.