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Finding the Fourth Proportional to 6,479.18, 8,942.49 and 4,057.67

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Solution

The fourth proportional to 6,479.18, 8,942.49 and 4,057.67 is: 5,600.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479.18 : 8,942.49 = 4,057.67 : x
  2. Step 2: Convert to fraction form
    6,479.18/8,942.49 = 4,057.67/x
  3. Step 3: Cross multiply
    6,479.18x = 8,942.49 × 4,057.67
  4. Step 4: Simplify right side
    6,479.18x = 36,285,608.40
  5. Step 5: Solve for x
    x = 36,285,608.40/6,479.18
  6. Step 6: Final answer
    x = 5,600.34

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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.