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Finding the Fourth Proportional to 14,614.82, 20,163.69 and 8,943.65

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Solution

The fourth proportional to 14,614.82, 20,163.69 and 8,943.65 is: 12,339.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,614.82 : 20,163.69 = 8,943.65 : x
  2. Step 2: Convert to fraction form
    14,614.82/20,163.69 = 8,943.65/x
  3. Step 3: Cross multiply
    14,614.82x = 20,163.69 × 8,943.65
  4. Step 4: Simplify right side
    14,614.82x = 180,336,986.07
  5. Step 5: Solve for x
    x = 180,336,986.07/14,614.82
  6. Step 6: Final answer
    x = 12,339.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.