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Finding the Fourth Proportional to 6,893.99, 9,514.21 and 3,910.09

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Solution

The fourth proportional to 6,893.99, 9,514.21 and 3,910.09 is: 5,396.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,893.99 : 9,514.21 = 3,910.09 : x
  2. Step 2: Convert to fraction form
    6,893.99/9,514.21 = 3,910.09/x
  3. Step 3: Cross multiply
    6,893.99x = 9,514.21 × 3,910.09
  4. Step 4: Simplify right side
    6,893.99x = 37,201,417.38
  5. Step 5: Solve for x
    x = 37,201,417.38/6,893.99
  6. Step 6: Final answer
    x = 5,396.21

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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.