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Finding the Fourth Proportional to 33,719.40, 50,636.70 and 18,167.40

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Solution

The fourth proportional to 33,719.40, 50,636.70 and 18,167.40 is: 27,282.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,719.40 : 50,636.70 = 18,167.40 : x
  2. Step 2: Convert to fraction form
    33,719.40/50,636.70 = 18,167.40/x
  3. Step 3: Cross multiply
    33,719.40x = 50,636.70 × 18,167.40
  4. Step 4: Simplify right side
    33,719.40x = 919,937,183.58
  5. Step 5: Solve for x
    x = 919,937,183.58/33,719.40
  6. Step 6: Final answer
    x = 27,282.13

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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.