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Finding the Fourth Proportional to 49,249.96, 73,874.94 and 12,313.96

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Solution

The fourth proportional to 49,249.96, 73,874.94 and 12,313.96 is: 18,470.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,249.96 : 73,874.94 = 12,313.96 : x
  2. Step 2: Convert to fraction form
    49,249.96/73,874.94 = 12,313.96/x
  3. Step 3: Cross multiply
    49,249.96x = 73,874.94 × 12,313.96
  4. Step 4: Simplify right side
    49,249.96x = 909,693,056.16
  5. Step 5: Solve for x
    x = 909,693,056.16/49,249.96
  6. Step 6: Final answer
    x = 18,470.94

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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.