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Finding the Fourth Proportional to 73,092.60, 100,868.10 and 39,558.60

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Solution

The fourth proportional to 73,092.60, 100,868.10 and 39,558.60 is: 54,591.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,092.60 : 100,868.10 = 39,558.60 : x
  2. Step 2: Convert to fraction form
    73,092.60/100,868.10 = 39,558.60/x
  3. Step 3: Cross multiply
    73,092.60x = 100,868.10 × 39,558.60
  4. Step 4: Simplify right side
    73,092.60x = 3,990,200,820.66
  5. Step 5: Solve for x
    x = 3,990,200,820.66/73,092.60
  6. Step 6: Final answer
    x = 54,591.04

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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.