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Finding the Fourth Proportional to 15,794.62, 21,796.36 and 8,624.73

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Solution

The fourth proportional to 15,794.62, 21,796.36 and 8,624.73 is: 11,902.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,794.62 : 21,796.36 = 8,624.73 : x
  2. Step 2: Convert to fraction form
    15,794.62/21,796.36 = 8,624.73/x
  3. Step 3: Cross multiply
    15,794.62x = 21,796.36 × 8,624.73
  4. Step 4: Simplify right side
    15,794.62x = 187,987,604.06
  5. Step 5: Solve for x
    x = 187,987,604.06/15,794.62
  6. Step 6: Final answer
    x = 11,902.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.