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Finding the Fourth Proportional to 8,771.58, 12,104.34 and 4,791.96

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Solution

The fourth proportional to 8,771.58, 12,104.34 and 4,791.96 is: 6,612.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,771.58 : 12,104.34 = 4,791.96 : x
  2. Step 2: Convert to fraction form
    8,771.58/12,104.34 = 4,791.96/x
  3. Step 3: Cross multiply
    8,771.58x = 12,104.34 × 4,791.96
  4. Step 4: Simplify right side
    8,771.58x = 58,003,513.11
  5. Step 5: Solve for x
    x = 58,003,513.11/8,771.58
  6. Step 6: Final answer
    x = 6,612.66

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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.