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Finding the Fourth Proportional to 8,603,321.84, 11,865,952.64 and 5,342,067.44

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Solution

The fourth proportional to 8,603,321.84, 11,865,952.64 and 5,342,067.44 is: 7,367,935.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603,321.84 : 11,865,952.64 = 5,342,067.44 : x
  2. Step 2: Convert to fraction form
    8,603,321.84/11,865,952.64 = 5,342,067.44/x
  3. Step 3: Cross multiply
    8,603,321.84x = 11,865,952.64 × 5,342,067.44
  4. Step 4: Simplify right side
    8,603,321.84x = 63,388,719,242,726.05
  5. Step 5: Solve for x
    x = 63,388,719,242,726.05/8,603,321.84
  6. Step 6: Final answer
    x = 7,367,935.37

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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.