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Finding the Fourth Proportional to 8,173.99, 12,255.27 and 4,477.96

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Solution

The fourth proportional to 8,173.99, 12,255.27 and 4,477.96 is: 6,713.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,173.99 : 12,255.27 = 4,477.96 : x
  2. Step 2: Convert to fraction form
    8,173.99/12,255.27 = 4,477.96/x
  3. Step 3: Cross multiply
    8,173.99x = 12,255.27 × 4,477.96
  4. Step 4: Simplify right side
    8,173.99x = 54,878,608.85
  5. Step 5: Solve for x
    x = 54,878,608.85/8,173.99
  6. Step 6: Final answer
    x = 6,713.81

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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.