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Finding the Fourth Proportional to 11,450.46, 15,794.42 and 8,928.52

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Solution

The fourth proportional to 11,450.46, 15,794.42 and 8,928.52 is: 12,315.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,450.46 : 15,794.42 = 8,928.52 : x
  2. Step 2: Convert to fraction form
    11,450.46/15,794.42 = 8,928.52/x
  3. Step 3: Cross multiply
    11,450.46x = 15,794.42 × 8,928.52
  4. Step 4: Simplify right side
    11,450.46x = 141,020,794.86
  5. Step 5: Solve for x
    x = 141,020,794.86/11,450.46
  6. Step 6: Final answer
    x = 12,315.73

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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.