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Finding the Fourth Proportional to 7,867.97, 11,798.11 and 3,704.47

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Solution

The fourth proportional to 7,867.97, 11,798.11 and 3,704.47 is: 5,554.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.97 : 11,798.11 = 3,704.47 : x
  2. Step 2: Convert to fraction form
    7,867.97/11,798.11 = 3,704.47/x
  3. Step 3: Cross multiply
    7,867.97x = 11,798.11 × 3,704.47
  4. Step 4: Simplify right side
    7,867.97x = 43,705,698.85
  5. Step 5: Solve for x
    x = 43,705,698.85/7,867.97
  6. Step 6: Final answer
    x = 5,554.89

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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.