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Finding the Fourth Proportional to 12,609.66, 18,914.48 and 3,844.49

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Solution

The fourth proportional to 12,609.66, 18,914.48 and 3,844.49 is: 5,766.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.66 : 18,914.48 = 3,844.49 : x
  2. Step 2: Convert to fraction form
    12,609.66/18,914.48 = 3,844.49/x
  3. Step 3: Cross multiply
    12,609.66x = 18,914.48 × 3,844.49
  4. Step 4: Simplify right side
    12,609.66x = 72,716,529.22
  5. Step 5: Solve for x
    x = 72,716,529.22/12,609.66
  6. Step 6: Final answer
    x = 5,766.73

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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.