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Finding the Fourth Proportional to 14,029.94, 20,942.21 and 12,369.24

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Solution

The fourth proportional to 14,029.94, 20,942.21 and 12,369.24 is: 18,463.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,029.94 : 20,942.21 = 12,369.24 : x
  2. Step 2: Convert to fraction form
    14,029.94/20,942.21 = 12,369.24/x
  3. Step 3: Cross multiply
    14,029.94x = 20,942.21 × 12,369.24
  4. Step 4: Simplify right side
    14,029.94x = 259,039,252.54
  5. Step 5: Solve for x
    x = 259,039,252.54/14,029.94
  6. Step 6: Final answer
    x = 18,463.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.