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Finding the Fourth Proportional to 8,241.89, 12,363.78 and 2,693.66

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Solution

The fourth proportional to 8,241.89, 12,363.78 and 2,693.66 is: 4,040.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,241.89 : 12,363.78 = 2,693.66 : x
  2. Step 2: Convert to fraction form
    8,241.89/12,363.78 = 2,693.66/x
  3. Step 3: Cross multiply
    8,241.89x = 12,363.78 × 2,693.66
  4. Step 4: Simplify right side
    8,241.89x = 33,303,819.63
  5. Step 5: Solve for x
    x = 33,303,819.63/8,241.89
  6. Step 6: Final answer
    x = 4,040.80

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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.