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Finding the Fourth Proportional to 12,950.44, 19,458.49 and 12,079.73

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Solution

The fourth proportional to 12,950.44, 19,458.49 and 12,079.73 is: 18,150.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,950.44 : 19,458.49 = 12,079.73 : x
  2. Step 2: Convert to fraction form
    12,950.44/19,458.49 = 12,079.73/x
  3. Step 3: Cross multiply
    12,950.44x = 19,458.49 × 12,079.73
  4. Step 4: Simplify right side
    12,950.44x = 235,053,305.41
  5. Step 5: Solve for x
    x = 235,053,305.41/12,950.44
  6. Step 6: Final answer
    x = 18,150.22

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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.