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Finding the Fourth Proportional to 73,092.98, 100,868.28 and 39,558.98

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Solution

The fourth proportional to 73,092.98, 100,868.28 and 39,558.98 is: 54,591.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,092.98 : 100,868.28 = 39,558.98 : x
  2. Step 2: Convert to fraction form
    73,092.98/100,868.28 = 39,558.98/x
  3. Step 3: Cross multiply
    73,092.98x = 100,868.28 × 39,558.98
  4. Step 4: Simplify right side
    73,092.98x = 3,990,246,172.26
  5. Step 5: Solve for x
    x = 3,990,246,172.26/73,092.98
  6. Step 6: Final answer
    x = 54,591.37

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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.