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Finding the Fourth Proportional to 8,396.76, 11,586.87 and 4,860.21

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Solution

The fourth proportional to 8,396.76, 11,586.87 and 4,860.21 is: 6,706.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,396.76 : 11,586.87 = 4,860.21 : x
  2. Step 2: Convert to fraction form
    8,396.76/11,586.87 = 4,860.21/x
  3. Step 3: Cross multiply
    8,396.76x = 11,586.87 × 4,860.21
  4. Step 4: Simplify right side
    8,396.76x = 56,314,621.44
  5. Step 5: Solve for x
    x = 56,314,621.44/8,396.76
  6. Step 6: Final answer
    x = 6,706.71

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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.