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Finding the Fourth Proportional to 6,910.15, 9,537.87 and 3,926.11

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Solution

The fourth proportional to 6,910.15, 9,537.87 and 3,926.11 is: 5,419.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,910.15 : 9,537.87 = 3,926.11 : x
  2. Step 2: Convert to fraction form
    6,910.15/9,537.87 = 3,926.11/x
  3. Step 3: Cross multiply
    6,910.15x = 9,537.87 × 3,926.11
  4. Step 4: Simplify right side
    6,910.15x = 37,446,726.79
  5. Step 5: Solve for x
    x = 37,446,726.79/6,910.15
  6. Step 6: Final answer
    x = 5,419.09

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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.