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Finding the Fourth Proportional to 8,066.80, 11,131.88 and 4,481.94

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Solution

The fourth proportional to 8,066.80, 11,131.88 and 4,481.94 is: 6,184.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,066.80 : 11,131.88 = 4,481.94 : x
  2. Step 2: Convert to fraction form
    8,066.80/11,131.88 = 4,481.94/x
  3. Step 3: Cross multiply
    8,066.80x = 11,131.88 × 4,481.94
  4. Step 4: Simplify right side
    8,066.80x = 49,892,395.84
  5. Step 5: Solve for x
    x = 49,892,395.84/8,066.80
  6. Step 6: Final answer
    x = 6,184.91

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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.