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Finding the Fourth Proportional to 36,489.96, 50,355.95 and 20,574.54

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Solution

The fourth proportional to 36,489.96, 50,355.95 and 20,574.54 is: 28,392.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,489.96 : 50,355.95 = 20,574.54 : x
  2. Step 2: Convert to fraction form
    36,489.96/50,355.95 = 20,574.54/x
  3. Step 3: Cross multiply
    36,489.96x = 50,355.95 × 20,574.54
  4. Step 4: Simplify right side
    36,489.96x = 1,036,050,404.64
  5. Step 5: Solve for x
    x = 1,036,050,404.64/36,489.96
  6. Step 6: Final answer
    x = 28,392.75

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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.