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Finding the Fourth Proportional to 8,047,042.80, 12,067,939.80 and 2,997,697.20

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Solution

The fourth proportional to 8,047,042.80, 12,067,939.80 and 2,997,697.20 is: 4,495,568.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,047,042.80 : 12,067,939.80 = 2,997,697.20 : x
  2. Step 2: Convert to fraction form
    8,047,042.80/12,067,939.80 = 2,997,697.20/x
  3. Step 3: Cross multiply
    8,047,042.80x = 12,067,939.80 × 2,997,697.20
  4. Step 4: Simplify right side
    8,047,042.80x = 36,176,029,348,228.56
  5. Step 5: Solve for x
    x = 36,176,029,348,228.56/8,047,042.80
  6. Step 6: Final answer
    x = 4,495,568.15

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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.