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Finding the Fourth Proportional to 49,155.75, 73,733.67 and 12,219.75

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Solution

The fourth proportional to 49,155.75, 73,733.67 and 12,219.75 is: 18,329.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,155.75 : 73,733.67 = 12,219.75 : x
  2. Step 2: Convert to fraction form
    49,155.75/73,733.67 = 12,219.75/x
  3. Step 3: Cross multiply
    49,155.75x = 73,733.67 × 12,219.75
  4. Step 4: Simplify right side
    49,155.75x = 901,007,013.98
  5. Step 5: Solve for x
    x = 901,007,013.98/49,155.75
  6. Step 6: Final answer
    x = 18,329.64

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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.