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Finding the Fourth Proportional to 8,879.89, 12,254.29 and 4,846.67

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Solution

The fourth proportional to 8,879.89, 12,254.29 and 4,846.67 is: 6,688.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879.89 : 12,254.29 = 4,846.67 : x
  2. Step 2: Convert to fraction form
    8,879.89/12,254.29 = 4,846.67/x
  3. Step 3: Cross multiply
    8,879.89x = 12,254.29 × 4,846.67
  4. Step 4: Simplify right side
    8,879.89x = 59,392,438.44
  5. Step 5: Solve for x
    x = 59,392,438.44/8,879.89
  6. Step 6: Final answer
    x = 6,688.42

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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.