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Finding the Fourth Proportional to 73,021.94, 100,770.24 and 39,487.94

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Solution

The fourth proportional to 73,021.94, 100,770.24 and 39,487.94 is: 54,493.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,021.94 : 100,770.24 = 39,487.94 : x
  2. Step 2: Convert to fraction form
    73,021.94/100,770.24 = 39,487.94/x
  3. Step 3: Cross multiply
    73,021.94x = 100,770.24 × 39,487.94
  4. Step 4: Simplify right side
    73,021.94x = 3,979,209,213.02
  5. Step 5: Solve for x
    x = 3,979,209,213.02/73,021.94
  6. Step 6: Final answer
    x = 54,493.34

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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.