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Finding the Fourth Proportional to 7,872.58, 11,806.09 and 2,324.44

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Solution

The fourth proportional to 7,872.58, 11,806.09 and 2,324.44 is: 3,485.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,872.58 : 11,806.09 = 2,324.44 : x
  2. Step 2: Convert to fraction form
    7,872.58/11,806.09 = 2,324.44/x
  3. Step 3: Cross multiply
    7,872.58x = 11,806.09 × 2,324.44
  4. Step 4: Simplify right side
    7,872.58x = 27,442,547.84
  5. Step 5: Solve for x
    x = 27,442,547.84/7,872.58
  6. Step 6: Final answer
    x = 3,485.84

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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.