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Finding the Fourth Proportional to 71,768.73, 98,938.21 and 50,481.93

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Solution

The fourth proportional to 71,768.73, 98,938.21 and 50,481.93 is: 69,592.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,768.73 : 98,938.21 = 50,481.93 : x
  2. Step 2: Convert to fraction form
    71,768.73/98,938.21 = 50,481.93/x
  3. Step 3: Cross multiply
    71,768.73x = 98,938.21 × 50,481.93
  4. Step 4: Simplify right side
    71,768.73x = 4,994,592,131.01
  5. Step 5: Solve for x
    x = 4,994,592,131.01/71,768.73
  6. Step 6: Final answer
    x = 69,592.87

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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.