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Finding the Fourth Proportional to 8,874,400.80, 13,292,938.80 and 7,381,408.80

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Solution

The fourth proportional to 8,874,400.80, 13,292,938.80 and 7,381,408.80 is: 11,056,590.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,874,400.80 : 13,292,938.80 = 7,381,408.80 : x
  2. Step 2: Convert to fraction form
    8,874,400.80/13,292,938.80 = 7,381,408.80/x
  3. Step 3: Cross multiply
    8,874,400.80x = 13,292,938.80 × 7,381,408.80
  4. Step 4: Simplify right side
    8,874,400.80x = 98,120,615,436,181.44
  5. Step 5: Solve for x
    x = 98,120,615,436,181.44/8,874,400.80
  6. Step 6: Final answer
    x = 11,056,590.48

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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.