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Finding the Fourth Proportional to 18,907,651.98, 28,362,483.66 and 5,954,815.58

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Solution

The fourth proportional to 18,907,651.98, 28,362,483.66 and 5,954,815.58 is: 8,932,540.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,907,651.98 : 28,362,483.66 = 5,954,815.58 : x
  2. Step 2: Convert to fraction form
    18,907,651.98/28,362,483.66 = 5,954,815.58/x
  3. Step 3: Cross multiply
    18,907,651.98x = 28,362,483.66 × 5,954,815.58
  4. Step 4: Simplify right side
    18,907,651.98x = 168,893,359,586,063.44
  5. Step 5: Solve for x
    x = 168,893,359,586,063.44/18,907,651.98
  6. Step 6: Final answer
    x = 8,932,540.11

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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.