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Finding the Fourth Proportional to 8,372,711.80, 12,562,566.90 and 2,694,676.60

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Solution

The fourth proportional to 8,372,711.80, 12,562,566.90 and 2,694,676.60 is: 4,043,141.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,372,711.80 : 12,562,566.90 = 2,694,676.60 : x
  2. Step 2: Convert to fraction form
    8,372,711.80/12,562,566.90 = 2,694,676.60/x
  3. Step 3: Cross multiply
    8,372,711.80x = 12,562,566.90 × 2,694,676.60
  4. Step 4: Simplify right side
    8,372,711.80x = 33,852,055,061,364.54
  5. Step 5: Solve for x
    x = 33,852,055,061,364.54/8,372,711.80
  6. Step 6: Final answer
    x = 4,043,141.08

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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.