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Finding the Fourth Proportional to 5,676.15, 8,514.09 and 1,515.99

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Solution

The fourth proportional to 5,676.15, 8,514.09 and 1,515.99 is: 2,273.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,676.15 : 8,514.09 = 1,515.99 : x
  2. Step 2: Convert to fraction form
    5,676.15/8,514.09 = 1,515.99/x
  3. Step 3: Cross multiply
    5,676.15x = 8,514.09 × 1,515.99
  4. Step 4: Simplify right side
    5,676.15x = 12,907,275.30
  5. Step 5: Solve for x
    x = 12,907,275.30/5,676.15
  6. Step 6: Final answer
    x = 2,273.95

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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.