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Finding the Fourth Proportional to 84,602.63, 126,911.78 and 27,676.85

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Solution

The fourth proportional to 84,602.63, 126,911.78 and 27,676.85 is: 41,517.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,602.63 : 126,911.78 = 27,676.85 : x
  2. Step 2: Convert to fraction form
    84,602.63/126,911.78 = 27,676.85/x
  3. Step 3: Cross multiply
    84,602.63x = 126,911.78 × 27,676.85
  4. Step 4: Simplify right side
    84,602.63x = 3,512,517,525.35
  5. Step 5: Solve for x
    x = 3,512,517,525.35/84,602.63
  6. Step 6: Final answer
    x = 41,517.83

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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.