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Finding the Fourth Proportional to 18,631.09, 27,950.06 and 6,151.96

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Solution

The fourth proportional to 18,631.09, 27,950.06 and 6,151.96 is: 9,229.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.09 : 27,950.06 = 6,151.96 : x
  2. Step 2: Convert to fraction form
    18,631.09/27,950.06 = 6,151.96/x
  3. Step 3: Cross multiply
    18,631.09x = 27,950.06 × 6,151.96
  4. Step 4: Simplify right side
    18,631.09x = 171,947,651.12
  5. Step 5: Solve for x
    x = 171,947,651.12/18,631.09
  6. Step 6: Final answer
    x = 9,229.07

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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.