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Finding the Fourth Proportional to 36,859.88, 55,289.82 and 12,235.88

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Solution

The fourth proportional to 36,859.88, 55,289.82 and 12,235.88 is: 18,353.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,859.88 : 55,289.82 = 12,235.88 : x
  2. Step 2: Convert to fraction form
    36,859.88/55,289.82 = 12,235.88/x
  3. Step 3: Cross multiply
    36,859.88x = 55,289.82 × 12,235.88
  4. Step 4: Simplify right side
    36,859.88x = 676,519,326.29
  5. Step 5: Solve for x
    x = 676,519,326.29/36,859.88
  6. Step 6: Final answer
    x = 18,353.81

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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.