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Finding the Fourth Proportional to 49,063.40, 73,604.70 and 20,983.40

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Solution

The fourth proportional to 49,063.40, 73,604.70 and 20,983.40 is: 31,479.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,063.40 : 73,604.70 = 20,983.40 : x
  2. Step 2: Convert to fraction form
    49,063.40/73,604.70 = 20,983.40/x
  3. Step 3: Cross multiply
    49,063.40x = 73,604.70 × 20,983.40
  4. Step 4: Simplify right side
    49,063.40x = 1,544,476,861.98
  5. Step 5: Solve for x
    x = 1,544,476,861.98/49,063.40
  6. Step 6: Final answer
    x = 31,479.21

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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.