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Finding the Fourth Proportional to 62,694,938.80, 94,042,408.20 and 28,682,714.80

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Solution

The fourth proportional to 62,694,938.80, 94,042,408.20 and 28,682,714.80 is: 43,024,072.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,694,938.80 : 94,042,408.20 = 28,682,714.80 : x
  2. Step 2: Convert to fraction form
    62,694,938.80/94,042,408.20 = 28,682,714.80/x
  3. Step 3: Cross multiply
    62,694,938.80x = 94,042,408.20 × 28,682,714.80
  4. Step 4: Simplify right side
    62,694,938.80x = 2,697,391,573,505,781.50
  5. Step 5: Solve for x
    x = 2,697,391,573,505,781.50/62,694,938.80
  6. Step 6: Final answer
    x = 43,024,072.20

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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.