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Finding the Fourth Proportional to 12,408.48, 18,591.03 and 10,341.77

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Solution

The fourth proportional to 12,408.48, 18,591.03 and 10,341.77 is: 15,494.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.48 : 18,591.03 = 10,341.77 : x
  2. Step 2: Convert to fraction form
    12,408.48/18,591.03 = 10,341.77/x
  3. Step 3: Cross multiply
    12,408.48x = 18,591.03 × 10,341.77
  4. Step 4: Simplify right side
    12,408.48x = 192,264,063.37
  5. Step 5: Solve for x
    x = 192,264,063.37/12,408.48
  6. Step 6: Final answer
    x = 15,494.57

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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.