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Finding the Fourth Proportional to 36,756.88, 55,085.82 and 20,091.88

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Solution

The fourth proportional to 36,756.88, 55,085.82 and 20,091.88 is: 30,110.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,756.88 : 55,085.82 = 20,091.88 : x
  2. Step 2: Convert to fraction form
    36,756.88/55,085.82 = 20,091.88/x
  3. Step 3: Cross multiply
    36,756.88x = 55,085.82 × 20,091.88
  4. Step 4: Simplify right side
    36,756.88x = 1,106,777,685.14
  5. Step 5: Solve for x
    x = 1,106,777,685.14/36,756.88
  6. Step 6: Final answer
    x = 30,110.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.