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Finding the Fourth Proportional to 8,771.44, 13,155.74 and 3,223.42

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Solution

The fourth proportional to 8,771.44, 13,155.74 and 3,223.42 is: 4,834.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,771.44 : 13,155.74 = 3,223.42 : x
  2. Step 2: Convert to fraction form
    8,771.44/13,155.74 = 3,223.42/x
  3. Step 3: Cross multiply
    8,771.44x = 13,155.74 × 3,223.42
  4. Step 4: Simplify right side
    8,771.44x = 42,406,475.43
  5. Step 5: Solve for x
    x = 42,406,475.43/8,771.44
  6. Step 6: Final answer
    x = 4,834.61

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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.