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Finding the Fourth Proportional to 16,640,704.40, 24,961,056.60 and 12,070,311.80

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Solution

The fourth proportional to 16,640,704.40, 24,961,056.60 and 12,070,311.80 is: 18,105,467.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,640,704.40 : 24,961,056.60 = 12,070,311.80 : x
  2. Step 2: Convert to fraction form
    16,640,704.40/24,961,056.60 = 12,070,311.80/x
  3. Step 3: Cross multiply
    16,640,704.40x = 24,961,056.60 × 12,070,311.80
  4. Step 4: Simplify right side
    16,640,704.40x = 301,287,736,019,447.94
  5. Step 5: Solve for x
    x = 301,287,736,019,447.94/16,640,704.40
  6. Step 6: Final answer
    x = 18,105,467.70

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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.