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Finding the Fourth Proportional to 36,681.72, 50,620.86 and 19,914.36

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Solution

The fourth proportional to 36,681.72, 50,620.86 and 19,914.36 is: 27,481.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,681.72 : 50,620.86 = 19,914.36 : x
  2. Step 2: Convert to fraction form
    36,681.72/50,620.86 = 19,914.36/x
  3. Step 3: Cross multiply
    36,681.72x = 50,620.86 × 19,914.36
  4. Step 4: Simplify right side
    36,681.72x = 1,008,082,029.55
  5. Step 5: Solve for x
    x = 1,008,082,029.55/36,681.72
  6. Step 6: Final answer
    x = 27,481.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.