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Finding the Fourth Proportional to 18,751,504.80, 28,085,266.80 and 11,193,232.80

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Solution

The fourth proportional to 18,751,504.80, 28,085,266.80 and 11,193,232.80 is: 16,764,784.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,751,504.80 : 28,085,266.80 = 11,193,232.80 : x
  2. Step 2: Convert to fraction form
    18,751,504.80/28,085,266.80 = 11,193,232.80/x
  3. Step 3: Cross multiply
    18,751,504.80x = 28,085,266.80 × 11,193,232.80
  4. Step 4: Simplify right side
    18,751,504.80x = 314,364,929,542,511.06
  5. Step 5: Solve for x
    x = 314,364,929,542,511.06/18,751,504.80
  6. Step 6: Final answer
    x = 16,764,784.10

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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.