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Finding the Fourth Proportional to 11,956.94, 17,936.04 and 3,636.32

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Solution

The fourth proportional to 11,956.94, 17,936.04 and 3,636.32 is: 5,454.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,956.94 : 17,936.04 = 3,636.32 : x
  2. Step 2: Convert to fraction form
    11,956.94/17,936.04 = 3,636.32/x
  3. Step 3: Cross multiply
    11,956.94x = 17,936.04 × 3,636.32
  4. Step 4: Simplify right side
    11,956.94x = 65,221,091.29
  5. Step 5: Solve for x
    x = 65,221,091.29/11,956.94
  6. Step 6: Final answer
    x = 5,454.67

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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.