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Finding the Fourth Proportional to 36,380.94, 50,205.50 and 20,465.50

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Solution

The fourth proportional to 36,380.94, 50,205.50 and 20,465.50 is: 28,242.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,380.94 : 50,205.50 = 20,465.50 : x
  2. Step 2: Convert to fraction form
    36,380.94/50,205.50 = 20,465.50/x
  3. Step 3: Cross multiply
    36,380.94x = 50,205.50 × 20,465.50
  4. Step 4: Simplify right side
    36,380.94x = 1,027,480,660.25
  5. Step 5: Solve for x
    x = 1,027,480,660.25/36,380.94
  6. Step 6: Final answer
    x = 28,242.28

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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.