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Finding the Fourth Proportional to 13,674.72, 20,497.68 and 7,093.92

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Solution

The fourth proportional to 13,674.72, 20,497.68 and 7,093.92 is: 10,633.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,674.72 : 20,497.68 = 7,093.92 : x
  2. Step 2: Convert to fraction form
    13,674.72/20,497.68 = 7,093.92/x
  3. Step 3: Cross multiply
    13,674.72x = 20,497.68 × 7,093.92
  4. Step 4: Simplify right side
    13,674.72x = 145,408,902.11
  5. Step 5: Solve for x
    x = 145,408,902.11/13,674.72
  6. Step 6: Final answer
    x = 10,633.41

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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.