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Finding the Fourth Proportional to 6,643,067.90, 9,964,601.85 and 1,851,496.70

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Solution

The fourth proportional to 6,643,067.90, 9,964,601.85 and 1,851,496.70 is: 2,777,245.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643,067.90 : 9,964,601.85 = 1,851,496.70 : x
  2. Step 2: Convert to fraction form
    6,643,067.90/9,964,601.85 = 1,851,496.70/x
  3. Step 3: Cross multiply
    6,643,067.90x = 9,964,601.85 × 1,851,496.70
  4. Step 4: Simplify right side
    6,643,067.90x = 18,449,427,442,088.89
  5. Step 5: Solve for x
    x = 18,449,427,442,088.89/6,643,067.90
  6. Step 6: Final answer
    x = 2,777,245.05

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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.