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Finding the Fourth Proportional to 33,406.60, 50,109.90 and 11,220.70

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Solution

The fourth proportional to 33,406.60, 50,109.90 and 11,220.70 is: 16,831.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,406.60 : 50,109.90 = 11,220.70 : x
  2. Step 2: Convert to fraction form
    33,406.60/50,109.90 = 11,220.70/x
  3. Step 3: Cross multiply
    33,406.60x = 50,109.90 × 11,220.70
  4. Step 4: Simplify right side
    33,406.60x = 562,268,154.93
  5. Step 5: Solve for x
    x = 562,268,154.93/33,406.60
  6. Step 6: Final answer
    x = 16,831.05

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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.