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Finding the Fourth Proportional to 8,070.94, 12,110.21 and 3,391.98

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Solution

The fourth proportional to 8,070.94, 12,110.21 and 3,391.98 is: 5,089.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,070.94 : 12,110.21 = 3,391.98 : x
  2. Step 2: Convert to fraction form
    8,070.94/12,110.21 = 3,391.98/x
  3. Step 3: Cross multiply
    8,070.94x = 12,110.21 × 3,391.98
  4. Step 4: Simplify right side
    8,070.94x = 41,077,540.46
  5. Step 5: Solve for x
    x = 41,077,540.46/8,070.94
  6. Step 6: Final answer
    x = 5,089.56

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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.