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Finding the Fourth Proportional to 7,893.80, 11,840.91 and 3,735.76

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Solution

The fourth proportional to 7,893.80, 11,840.91 and 3,735.76 is: 5,603.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,893.80 : 11,840.91 = 3,735.76 : x
  2. Step 2: Convert to fraction form
    7,893.80/11,840.91 = 3,735.76/x
  3. Step 3: Cross multiply
    7,893.80x = 11,840.91 × 3,735.76
  4. Step 4: Simplify right side
    7,893.80x = 44,234,754.33
  5. Step 5: Solve for x
    x = 44,234,754.33/7,893.80
  6. Step 6: Final answer
    x = 5,603.73

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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.