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Finding the Fourth Proportional to 36,489.56, 50,355.66 and 19,722.56

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Solution

The fourth proportional to 36,489.56, 50,355.66 and 19,722.56 is: 27,217.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,489.56 : 50,355.66 = 19,722.56 : x
  2. Step 2: Convert to fraction form
    36,489.56/50,355.66 = 19,722.56/x
  3. Step 3: Cross multiply
    36,489.56x = 50,355.66 × 19,722.56
  4. Step 4: Simplify right side
    36,489.56x = 993,142,525.69
  5. Step 5: Solve for x
    x = 993,142,525.69/36,489.56
  6. Step 6: Final answer
    x = 27,217.17

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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.