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Finding the Fourth Proportional to 36,201.90, 54,286.65 and 14,007.90

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Solution

The fourth proportional to 36,201.90, 54,286.65 and 14,007.90 is: 21,005.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,201.90 : 54,286.65 = 14,007.90 : x
  2. Step 2: Convert to fraction form
    36,201.90/54,286.65 = 14,007.90/x
  3. Step 3: Cross multiply
    36,201.90x = 54,286.65 × 14,007.90
  4. Step 4: Simplify right side
    36,201.90x = 760,441,964.54
  5. Step 5: Solve for x
    x = 760,441,964.54/36,201.90
  6. Step 6: Final answer
    x = 21,005.58

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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.