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Finding the Fourth Proportional to 6,392,972.74, 9,589,542.21 and 2,133,140.97

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Solution

The fourth proportional to 6,392,972.74, 9,589,542.21 and 2,133,140.97 is: 3,199,739.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,392,972.74 : 9,589,542.21 = 2,133,140.97 : x
  2. Step 2: Convert to fraction form
    6,392,972.74/9,589,542.21 = 2,133,140.97/x
  3. Step 3: Cross multiply
    6,392,972.74x = 9,589,542.21 × 2,133,140.97
  4. Step 4: Simplify right side
    6,392,972.74x = 20,455,845,371,695.35
  5. Step 5: Solve for x
    x = 20,455,845,371,695.35/6,392,972.74
  6. Step 6: Final answer
    x = 3,199,739.18

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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.