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Finding the Fourth Proportional to 6,676.92, 9,990.27 and 4,100.31

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Solution

The fourth proportional to 6,676.92, 9,990.27 and 4,100.31 is: 6,135.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,676.92 : 9,990.27 = 4,100.31 : x
  2. Step 2: Convert to fraction form
    6,676.92/9,990.27 = 4,100.31/x
  3. Step 3: Cross multiply
    6,676.92x = 9,990.27 × 4,100.31
  4. Step 4: Simplify right side
    6,676.92x = 40,963,203.98
  5. Step 5: Solve for x
    x = 40,963,203.98/6,676.92
  6. Step 6: Final answer
    x = 6,135.04

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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.