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Finding the Fourth Proportional to 36,486.12, 50,350.86 and 19,719.12

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Solution

The fourth proportional to 36,486.12, 50,350.86 and 19,719.12 is: 27,212.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,486.12 : 50,350.86 = 19,719.12 : x
  2. Step 2: Convert to fraction form
    36,486.12/50,350.86 = 19,719.12/x
  3. Step 3: Cross multiply
    36,486.12x = 50,350.86 × 19,719.12
  4. Step 4: Simplify right side
    36,486.12x = 992,874,650.44
  5. Step 5: Solve for x
    x = 992,874,650.44/36,486.12
  6. Step 6: Final answer
    x = 27,212.39

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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.