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Finding the Fourth Proportional to 8,041,869.20, 12,062,803.80 and 3,562,893.20

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Solution

The fourth proportional to 8,041,869.20, 12,062,803.80 and 3,562,893.20 is: 5,344,339.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,041,869.20 : 12,062,803.80 = 3,562,893.20 : x
  2. Step 2: Convert to fraction form
    8,041,869.20/12,062,803.80 = 3,562,893.20/x
  3. Step 3: Cross multiply
    8,041,869.20x = 12,062,803.80 × 3,562,893.20
  4. Step 4: Simplify right side
    8,041,869.20x = 42,978,481,631,954.16
  5. Step 5: Solve for x
    x = 42,978,481,631,954.16/8,041,869.20
  6. Step 6: Final answer
    x = 5,344,339.80

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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.