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Finding the Fourth Proportional to 6,479.91, 9,714.87 and 2,096.19

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Solution

The fourth proportional to 6,479.91, 9,714.87 and 2,096.19 is: 3,142.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479.91 : 9,714.87 = 2,096.19 : x
  2. Step 2: Convert to fraction form
    6,479.91/9,714.87 = 2,096.19/x
  3. Step 3: Cross multiply
    6,479.91x = 9,714.87 × 2,096.19
  4. Step 4: Simplify right side
    6,479.91x = 20,364,213.35
  5. Step 5: Solve for x
    x = 20,364,213.35/6,479.91
  6. Step 6: Final answer
    x = 3,142.67

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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.