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Finding the Fourth Proportional to 19,751.73, 29,627.60 and 7,910.88

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Solution

The fourth proportional to 19,751.73, 29,627.60 and 7,910.88 is: 11,866.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,751.73 : 29,627.60 = 7,910.88 : x
  2. Step 2: Convert to fraction form
    19,751.73/29,627.60 = 7,910.88/x
  3. Step 3: Cross multiply
    19,751.73x = 29,627.60 × 7,910.88
  4. Step 4: Simplify right side
    19,751.73x = 234,380,348.73
  5. Step 5: Solve for x
    x = 234,380,348.73/19,751.73
  6. Step 6: Final answer
    x = 11,866.32

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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.