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Finding the Fourth Proportional to 12,028.86, 16,600.34 and 6,723.67

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Solution

The fourth proportional to 12,028.86, 16,600.34 and 6,723.67 is: 9,278.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,028.86 : 16,600.34 = 6,723.67 : x
  2. Step 2: Convert to fraction form
    12,028.86/16,600.34 = 6,723.67/x
  3. Step 3: Cross multiply
    12,028.86x = 16,600.34 × 6,723.67
  4. Step 4: Simplify right side
    12,028.86x = 111,615,208.05
  5. Step 5: Solve for x
    x = 111,615,208.05/12,028.86
  6. Step 6: Final answer
    x = 9,278.95

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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.