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Finding the Fourth Proportional to 9,992.70, 14,974.47 and 5,611.41

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Solution

The fourth proportional to 9,992.70, 14,974.47 and 5,611.41 is: 8,408.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,992.70 : 14,974.47 = 5,611.41 : x
  2. Step 2: Convert to fraction form
    9,992.70/14,974.47 = 5,611.41/x
  3. Step 3: Cross multiply
    9,992.70x = 14,974.47 × 5,611.41
  4. Step 4: Simplify right side
    9,992.70x = 84,027,890.70
  5. Step 5: Solve for x
    x = 84,027,890.70/9,992.70
  6. Step 6: Final answer
    x = 8,408.93

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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.