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Finding the Fourth Proportional to 8,543.55, 11,790.09 and 4,766.61

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Solution

The fourth proportional to 8,543.55, 11,790.09 and 4,766.61 is: 6,577.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,543.55 : 11,790.09 = 4,766.61 : x
  2. Step 2: Convert to fraction form
    8,543.55/11,790.09 = 4,766.61/x
  3. Step 3: Cross multiply
    8,543.55x = 11,790.09 × 4,766.61
  4. Step 4: Simplify right side
    8,543.55x = 56,198,760.89
  5. Step 5: Solve for x
    x = 56,198,760.89/8,543.55
  6. Step 6: Final answer
    x = 6,577.92

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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.