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Finding the Fourth Proportional to 36,498,703.09, 50,368,226.03 and 19,978,921.87

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Solution

The fourth proportional to 36,498,703.09, 50,368,226.03 and 19,978,921.87 is: 27,570,920.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,498,703.09 : 50,368,226.03 = 19,978,921.87 : x
  2. Step 2: Convert to fraction form
    36,498,703.09/50,368,226.03 = 19,978,921.87/x
  3. Step 3: Cross multiply
    36,498,703.09x = 50,368,226.03 × 19,978,921.87
  4. Step 4: Simplify right side
    36,498,703.09x = 1,006,302,852,447,653
  5. Step 5: Solve for x
    x = 1,006,302,852,447,653/36,498,703.09
  6. Step 6: Final answer
    x = 27,570,920.81

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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.