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Finding the Fourth Proportional to 14,606.11, 20,154.99 and 8,942.46

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Solution

The fourth proportional to 14,606.11, 20,154.99 and 8,942.46 is: 12,339.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,606.11 : 20,154.99 = 8,942.46 : x
  2. Step 2: Convert to fraction form
    14,606.11/20,154.99 = 8,942.46/x
  3. Step 3: Cross multiply
    14,606.11x = 20,154.99 × 8,942.46
  4. Step 4: Simplify right side
    14,606.11x = 180,235,191.88
  5. Step 5: Solve for x
    x = 180,235,191.88/14,606.11
  6. Step 6: Final answer
    x = 12,339.71

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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.