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Finding the Fourth Proportional to 7,676.01, 11,512.74 and 2,129.94

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Solution

The fourth proportional to 7,676.01, 11,512.74 and 2,129.94 is: 3,194.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,676.01 : 11,512.74 = 2,129.94 : x
  2. Step 2: Convert to fraction form
    7,676.01/11,512.74 = 2,129.94/x
  3. Step 3: Cross multiply
    7,676.01x = 11,512.74 × 2,129.94
  4. Step 4: Simplify right side
    7,676.01x = 24,521,445.44
  5. Step 5: Solve for x
    x = 24,521,445.44/7,676.01
  6. Step 6: Final answer
    x = 3,194.56

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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.