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Finding the Fourth Proportional to 30,981.96, 46,474.70 and 8,793.58

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Solution

The fourth proportional to 30,981.96, 46,474.70 and 8,793.58 is: 13,190.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,981.96 : 46,474.70 = 8,793.58 : x
  2. Step 2: Convert to fraction form
    30,981.96/46,474.70 = 8,793.58/x
  3. Step 3: Cross multiply
    30,981.96x = 46,474.70 × 8,793.58
  4. Step 4: Simplify right side
    30,981.96x = 408,678,992.43
  5. Step 5: Solve for x
    x = 408,678,992.43/30,981.96
  6. Step 6: Final answer
    x = 13,190.87

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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.