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Finding the Fourth Proportional to 8,847.69, 13,267.23 and 5,151.21

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Solution

The fourth proportional to 8,847.69, 13,267.23 and 5,151.21 is: 7,724.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,847.69 : 13,267.23 = 5,151.21 : x
  2. Step 2: Convert to fraction form
    8,847.69/13,267.23 = 5,151.21/x
  3. Step 3: Cross multiply
    8,847.69x = 13,267.23 × 5,151.21
  4. Step 4: Simplify right side
    8,847.69x = 68,342,287.85
  5. Step 5: Solve for x
    x = 68,342,287.85/8,847.69
  6. Step 6: Final answer
    x = 7,724.31

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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.