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Finding the Fourth Proportional to 36,703,660.80, 54,979,804.80 and 21,511,545.60

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Solution

The fourth proportional to 36,703,660.80, 54,979,804.80 and 21,511,545.60 is: 32,222,959.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,703,660.80 : 54,979,804.80 = 21,511,545.60 : x
  2. Step 2: Convert to fraction form
    36,703,660.80/54,979,804.80 = 21,511,545.60/x
  3. Step 3: Cross multiply
    36,703,660.80x = 54,979,804.80 × 21,511,545.60
  4. Step 4: Simplify right side
    36,703,660.80x = 1,182,700,578,034,299
  5. Step 5: Solve for x
    x = 1,182,700,578,034,299/36,703,660.80
  6. Step 6: Final answer
    x = 32,222,959.57

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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.