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Finding the Fourth Proportional to 15,049.13, 20,766.22 and 8,334.58

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Solution

The fourth proportional to 15,049.13, 20,766.22 and 8,334.58 is: 11,500.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,049.13 : 20,766.22 = 8,334.58 : x
  2. Step 2: Convert to fraction form
    15,049.13/20,766.22 = 8,334.58/x
  3. Step 3: Cross multiply
    15,049.13x = 20,766.22 × 8,334.58
  4. Step 4: Simplify right side
    15,049.13x = 173,077,721.89
  5. Step 5: Solve for x
    x = 173,077,721.89/15,049.13
  6. Step 6: Final answer
    x = 11,500.85

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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.