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Finding the Fourth Proportional to 8,608.41, 11,879.01 and 5,070.96

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Solution

The fourth proportional to 8,608.41, 11,879.01 and 5,070.96 is: 6,997.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.41 : 11,879.01 = 5,070.96 : x
  2. Step 2: Convert to fraction form
    8,608.41/11,879.01 = 5,070.96/x
  3. Step 3: Cross multiply
    8,608.41x = 11,879.01 × 5,070.96
  4. Step 4: Simplify right side
    8,608.41x = 60,237,984.55
  5. Step 5: Solve for x
    x = 60,237,984.55/8,608.41
  6. Step 6: Final answer
    x = 6,997.57

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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.