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Finding the Fourth Proportional to 49,247.74, 73,871.13 and 12,311.74

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Solution

The fourth proportional to 49,247.74, 73,871.13 and 12,311.74 is: 18,467.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,247.74 : 73,871.13 = 12,311.74 : x
  2. Step 2: Convert to fraction form
    49,247.74/73,871.13 = 12,311.74/x
  3. Step 3: Cross multiply
    49,247.74x = 73,871.13 × 12,311.74
  4. Step 4: Simplify right side
    49,247.74x = 909,482,146.07
  5. Step 5: Solve for x
    x = 909,482,146.07/49,247.74
  6. Step 6: Final answer
    x = 18,467.49

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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.