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Finding the Fourth Proportional to 36,561.75, 54,842.90 and 8,859.75

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Solution

The fourth proportional to 36,561.75, 54,842.90 and 8,859.75 is: 13,289.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,561.75 : 54,842.90 = 8,859.75 : x
  2. Step 2: Convert to fraction form
    36,561.75/54,842.90 = 8,859.75/x
  3. Step 3: Cross multiply
    36,561.75x = 54,842.90 × 8,859.75
  4. Step 4: Simplify right side
    36,561.75x = 485,894,383.28
  5. Step 5: Solve for x
    x = 485,894,383.28/36,561.75
  6. Step 6: Final answer
    x = 13,289.69

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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.