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Finding the Fourth Proportional to 19,481.73, 29,220.98 and 7,795.59

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Solution

The fourth proportional to 19,481.73, 29,220.98 and 7,795.59 is: 11,692.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,481.73 : 29,220.98 = 7,795.59 : x
  2. Step 2: Convert to fraction form
    19,481.73/29,220.98 = 7,795.59/x
  3. Step 3: Cross multiply
    19,481.73x = 29,220.98 × 7,795.59
  4. Step 4: Simplify right side
    19,481.73x = 227,794,740.50
  5. Step 5: Solve for x
    x = 227,794,740.50/19,481.73
  6. Step 6: Final answer
    x = 11,692.74

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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.