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Finding the Fourth Proportional to 6,909.35, 10,362.11 and 1,910.52

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Solution

The fourth proportional to 6,909.35, 10,362.11 and 1,910.52 is: 2,865.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,909.35 : 10,362.11 = 1,910.52 : x
  2. Step 2: Convert to fraction form
    6,909.35/10,362.11 = 1,910.52/x
  3. Step 3: Cross multiply
    6,909.35x = 10,362.11 × 1,910.52
  4. Step 4: Simplify right side
    6,909.35x = 19,797,008.84
  5. Step 5: Solve for x
    x = 19,797,008.84/6,909.35
  6. Step 6: Final answer
    x = 2,865.25

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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.