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Finding the Fourth Proportional to 12,164.44, 18,246.66 and 3,956.44

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Solution

The fourth proportional to 12,164.44, 18,246.66 and 3,956.44 is: 5,934.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,164.44 : 18,246.66 = 3,956.44 : x
  2. Step 2: Convert to fraction form
    12,164.44/18,246.66 = 3,956.44/x
  3. Step 3: Cross multiply
    12,164.44x = 18,246.66 × 3,956.44
  4. Step 4: Simplify right side
    12,164.44x = 72,191,815.49
  5. Step 5: Solve for x
    x = 72,191,815.49/12,164.44
  6. Step 6: Final answer
    x = 5,934.66

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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.