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Finding the Fourth Proportional to 36,698.66, 50,644.16 and 20,786.18

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Solution

The fourth proportional to 36,698.66, 50,644.16 and 20,786.18 is: 28,684.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,698.66 : 50,644.16 = 20,786.18 : x
  2. Step 2: Convert to fraction form
    36,698.66/50,644.16 = 20,786.18/x
  3. Step 3: Cross multiply
    36,698.66x = 50,644.16 × 20,786.18
  4. Step 4: Simplify right side
    36,698.66x = 1,052,698,625.71
  5. Step 5: Solve for x
    x = 1,052,698,625.71/36,698.66
  6. Step 6: Final answer
    x = 28,684.93

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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.