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Finding the Fourth Proportional to 36,876.16, 50,876.94 and 20,954.80

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Solution

The fourth proportional to 36,876.16, 50,876.94 and 20,954.80 is: 28,910.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,876.16 : 50,876.94 = 20,954.80 : x
  2. Step 2: Convert to fraction form
    36,876.16/50,876.94 = 20,954.80/x
  3. Step 3: Cross multiply
    36,876.16x = 50,876.94 × 20,954.80
  4. Step 4: Simplify right side
    36,876.16x = 1,066,116,102.31
  5. Step 5: Solve for x
    x = 1,066,116,102.31/36,876.16
  6. Step 6: Final answer
    x = 28,910.71

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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.