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Finding the Fourth Proportional to 11,241.94, 16,849.74 and 8,459.68

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Solution

The fourth proportional to 11,241.94, 16,849.74 and 8,459.68 is: 12,679.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,241.94 : 16,849.74 = 8,459.68 : x
  2. Step 2: Convert to fraction form
    11,241.94/16,849.74 = 8,459.68/x
  3. Step 3: Cross multiply
    11,241.94x = 16,849.74 × 8,459.68
  4. Step 4: Simplify right side
    11,241.94x = 142,543,408.48
  5. Step 5: Solve for x
    x = 142,543,408.48/11,241.94
  6. Step 6: Final answer
    x = 12,679.61

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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.