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Finding the Fourth Proportional to 36,858.60, 50,864.87 and 20,091.60

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Solution

The fourth proportional to 36,858.60, 50,864.87 and 20,091.60 is: 27,726.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,858.60 : 50,864.87 = 20,091.60 : x
  2. Step 2: Convert to fraction form
    36,858.60/50,864.87 = 20,091.60/x
  3. Step 3: Cross multiply
    36,858.60x = 50,864.87 × 20,091.60
  4. Step 4: Simplify right side
    36,858.60x = 1,021,956,521.63
  5. Step 5: Solve for x
    x = 1,021,956,521.63/36,858.60
  6. Step 6: Final answer
    x = 27,726.41

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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.