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Finding the Fourth Proportional to 71,006.44, 97,986.18 and 40,793.80

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Solution

The fourth proportional to 71,006.44, 97,986.18 and 40,793.80 is: 56,293.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,006.44 : 97,986.18 = 40,793.80 : x
  2. Step 2: Convert to fraction form
    71,006.44/97,986.18 = 40,793.80/x
  3. Step 3: Cross multiply
    71,006.44x = 97,986.18 × 40,793.80
  4. Step 4: Simplify right side
    71,006.44x = 3,997,228,629.68
  5. Step 5: Solve for x
    x = 3,997,228,629.68/71,006.44
  6. Step 6: Final answer
    x = 56,293.89

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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.