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Finding the Fourth Proportional to 36,791.72, 55,187.58 and 9,089.72

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Solution

The fourth proportional to 36,791.72, 55,187.58 and 9,089.72 is: 13,634.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,791.72 : 55,187.58 = 9,089.72 : x
  2. Step 2: Convert to fraction form
    36,791.72/55,187.58 = 9,089.72/x
  3. Step 3: Cross multiply
    36,791.72x = 55,187.58 × 9,089.72
  4. Step 4: Simplify right side
    36,791.72x = 501,639,563.65
  5. Step 5: Solve for x
    x = 501,639,563.65/36,791.72
  6. Step 6: Final answer
    x = 13,634.58

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1.5x scale

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.