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Finding the Fourth Proportional to 11,972.03, 17,956.66 and 3,207.65

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Solution

The fourth proportional to 11,972.03, 17,956.66 and 3,207.65 is: 4,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.03 : 17,956.66 = 3,207.65 : x
  2. Step 2: Convert to fraction form
    11,972.03/17,956.66 = 3,207.65/x
  3. Step 3: Cross multiply
    11,972.03x = 17,956.66 × 3,207.65
  4. Step 4: Simplify right side
    11,972.03x = 57,598,680.45
  5. Step 5: Solve for x
    x = 57,598,680.45/11,972.03
  6. Step 6: Final answer
    x = 4,811.10

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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.