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Finding the Fourth Proportional to 36,858.19, 50,864.34 and 20,091.19

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Solution

The fourth proportional to 36,858.19, 50,864.34 and 20,091.19 is: 27,725.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,858.19 : 50,864.34 = 20,091.19 : x
  2. Step 2: Convert to fraction form
    36,858.19/50,864.34 = 20,091.19/x
  3. Step 3: Cross multiply
    36,858.19x = 50,864.34 × 20,091.19
  4. Step 4: Simplify right side
    36,858.19x = 1,021,925,018.71
  5. Step 5: Solve for x
    x = 1,021,925,018.71/36,858.19
  6. Step 6: Final answer
    x = 27,725.86

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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.