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Finding the Fourth Proportional to 36,953.56, 55,415.97 and 11,987.58

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Solution

The fourth proportional to 36,953.56, 55,415.97 and 11,987.58 is: 17,976.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,953.56 : 55,415.97 = 11,987.58 : x
  2. Step 2: Convert to fraction form
    36,953.56/55,415.97 = 11,987.58/x
  3. Step 3: Cross multiply
    36,953.56x = 55,415.97 × 11,987.58
  4. Step 4: Simplify right side
    36,953.56x = 664,303,373.65
  5. Step 5: Solve for x
    x = 664,303,373.65/36,953.56
  6. Step 6: Final answer
    x = 17,976.71

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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.