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Finding the Fourth Proportional to 8,474.35, 12,712.26 and 2,234.32

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Solution

The fourth proportional to 8,474.35, 12,712.26 and 2,234.32 is: 3,351.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,474.35 : 12,712.26 = 2,234.32 : x
  2. Step 2: Convert to fraction form
    8,474.35/12,712.26 = 2,234.32/x
  3. Step 3: Cross multiply
    8,474.35x = 12,712.26 × 2,234.32
  4. Step 4: Simplify right side
    8,474.35x = 28,403,256.76
  5. Step 5: Solve for x
    x = 28,403,256.76/8,474.35
  6. Step 6: Final answer
    x = 3,351.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.