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Finding the Fourth Proportional to 41,603,809.80, 62,405,714.70 and 18,928,993.80

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Solution

The fourth proportional to 41,603,809.80, 62,405,714.70 and 18,928,993.80 is: 28,393,490.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,603,809.80 : 62,405,714.70 = 18,928,993.80 : x
  2. Step 2: Convert to fraction form
    41,603,809.80/62,405,714.70 = 18,928,993.80/x
  3. Step 3: Cross multiply
    41,603,809.80x = 62,405,714.70 × 18,928,993.80
  4. Step 4: Simplify right side
    41,603,809.80x = 1,181,277,386,640,869
  5. Step 5: Solve for x
    x = 1,181,277,386,640,869/41,603,809.80
  6. Step 6: Final answer
    x = 28,393,490.70

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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.