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Finding the Fourth Proportional to 6,514.99, 8,990.14 and 3,682.62

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Solution

The fourth proportional to 6,514.99, 8,990.14 and 3,682.62 is: 5,081.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,514.99 : 8,990.14 = 3,682.62 : x
  2. Step 2: Convert to fraction form
    6,514.99/8,990.14 = 3,682.62/x
  3. Step 3: Cross multiply
    6,514.99x = 8,990.14 × 3,682.62
  4. Step 4: Simplify right side
    6,514.99x = 33,107,269.37
  5. Step 5: Solve for x
    x = 33,107,269.37/6,514.99
  6. Step 6: Final answer
    x = 5,081.71

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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.