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Finding the Fourth Proportional to 7,404.75, 11,113.00 and 3,896.80

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Solution

The fourth proportional to 7,404.75, 11,113.00 and 3,896.80 is: 5,848.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,404.75 : 11,113.00 = 3,896.80 : x
  2. Step 2: Convert to fraction form
    7,404.75/11,113.00 = 3,896.80/x
  3. Step 3: Cross multiply
    7,404.75x = 11,113.00 × 3,896.80
  4. Step 4: Simplify right side
    7,404.75x = 43,305,100.88
  5. Step 5: Solve for x
    x = 43,305,100.88/7,404.75
  6. Step 6: Final answer
    x = 5,848.29

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1.5x scale

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.