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Finding the Fourth Proportional to 5,935,993.20, 8,901,041.40 and 1,891,954.80

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Solution

The fourth proportional to 5,935,993.20, 8,901,041.40 and 1,891,954.80 is: 2,836,992.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,935,993.20 : 8,901,041.40 = 1,891,954.80 : x
  2. Step 2: Convert to fraction form
    5,935,993.20/8,901,041.40 = 1,891,954.80/x
  3. Step 3: Cross multiply
    5,935,993.20x = 8,901,041.40 × 1,891,954.80
  4. Step 4: Simplify right side
    5,935,993.20x = 16,840,368,001,728.72
  5. Step 5: Solve for x
    x = 16,840,368,001,728.72/5,935,993.20
  6. Step 6: Final answer
    x = 2,836,992.47

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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.