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Finding the Fourth Proportional to 33,777.20, 50,665.80 and 10,400.60

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Solution

The fourth proportional to 33,777.20, 50,665.80 and 10,400.60 is: 15,600.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,777.20 : 50,665.80 = 10,400.60 : x
  2. Step 2: Convert to fraction form
    33,777.20/50,665.80 = 10,400.60/x
  3. Step 3: Cross multiply
    33,777.20x = 50,665.80 × 10,400.60
  4. Step 4: Simplify right side
    33,777.20x = 526,954,719.48
  5. Step 5: Solve for x
    x = 526,954,719.48/33,777.20
  6. Step 6: Final answer
    x = 15,600.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.