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Finding the Fourth Proportional to 50,976.40, 76,450.02 and 19,804.36

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Solution

The fourth proportional to 50,976.40, 76,450.02 and 19,804.36 is: 29,700.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,976.40 : 76,450.02 = 19,804.36 : x
  2. Step 2: Convert to fraction form
    50,976.40/76,450.02 = 19,804.36/x
  3. Step 3: Cross multiply
    50,976.40x = 76,450.02 × 19,804.36
  4. Step 4: Simplify right side
    50,976.40x = 1,514,043,718.09
  5. Step 5: Solve for x
    x = 1,514,043,718.09/50,976.40
  6. Step 6: Final answer
    x = 29,700.88

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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.