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Finding the Fourth Proportional to 36,873.99, 50,890.49 and 20,960.84

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Solution

The fourth proportional to 36,873.99, 50,890.49 and 20,960.84 is: 28,928.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,873.99 : 50,890.49 = 20,960.84 : x
  2. Step 2: Convert to fraction form
    36,873.99/50,890.49 = 20,960.84/x
  3. Step 3: Cross multiply
    36,873.99x = 50,890.49 × 20,960.84
  4. Step 4: Simplify right side
    36,873.99x = 1,066,707,418.41
  5. Step 5: Solve for x
    x = 1,066,707,418.41/36,873.99
  6. Step 6: Final answer
    x = 28,928.45

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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.