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Finding the Fourth Proportional to 36,473.63, 54,726.91 and 20,891.25

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Solution

The fourth proportional to 36,473.63, 54,726.91 and 20,891.25 is: 31,346.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,473.63 : 54,726.91 = 20,891.25 : x
  2. Step 2: Convert to fraction form
    36,473.63/54,726.91 = 20,891.25/x
  3. Step 3: Cross multiply
    36,473.63x = 54,726.91 × 20,891.25
  4. Step 4: Simplify right side
    36,473.63x = 1,143,313,506.31
  5. Step 5: Solve for x
    x = 1,143,313,506.31/36,473.63
  6. Step 6: Final answer
    x = 31,346.31

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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.