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Finding the Fourth Proportional to 36,745.35, 50,709.12 and 20,829.45

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Solution

The fourth proportional to 36,745.35, 50,709.12 and 20,829.45 is: 28,744.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,745.35 : 50,709.12 = 20,829.45 : x
  2. Step 2: Convert to fraction form
    36,745.35/50,709.12 = 20,829.45/x
  3. Step 3: Cross multiply
    36,745.35x = 50,709.12 × 20,829.45
  4. Step 4: Simplify right side
    36,745.35x = 1,056,243,079.58
  5. Step 5: Solve for x
    x = 1,056,243,079.58/36,745.35
  6. Step 6: Final answer
    x = 28,744.95

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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.