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Finding the Fourth Proportional to 7,236,662.85, 9,986,920.49 and 4,335,991.44

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Solution

The fourth proportional to 7,236,662.85, 9,986,920.49 and 4,335,991.44 is: 5,983,863.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,236,662.85 : 9,986,920.49 = 4,335,991.44 : x
  2. Step 2: Convert to fraction form
    7,236,662.85/9,986,920.49 = 4,335,991.44/x
  3. Step 3: Cross multiply
    7,236,662.85x = 9,986,920.49 × 4,335,991.44
  4. Step 4: Simplify right side
    7,236,662.85x = 43,303,201,734,920.65
  5. Step 5: Solve for x
    x = 43,303,201,734,920.65/7,236,662.85
  6. Step 6: Final answer
    x = 5,983,863.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.