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Finding the Fourth Proportional to 7,136,997.93, 9,849,067.09 and 3,873,813.39

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Solution

The fourth proportional to 7,136,997.93, 9,849,067.09 and 3,873,813.39 is: 5,345,867.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136,997.93 : 9,849,067.09 = 3,873,813.39 : x
  2. Step 2: Convert to fraction form
    7,136,997.93/9,849,067.09 = 3,873,813.39/x
  3. Step 3: Cross multiply
    7,136,997.93x = 9,849,067.09 × 3,873,813.39
  4. Step 4: Simplify right side
    7,136,997.93x = 38,153,447,962,565.80
  5. Step 5: Solve for x
    x = 38,153,447,962,565.80/7,136,997.93
  6. Step 6: Final answer
    x = 5,345,867.88

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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.