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Finding the Fourth Proportional to 36,515.81, 50,391.82 and 19,748.81

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Solution

The fourth proportional to 36,515.81, 50,391.82 and 19,748.81 is: 27,253.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,515.81 : 50,391.82 = 19,748.81 : x
  2. Step 2: Convert to fraction form
    36,515.81/50,391.82 = 19,748.81/x
  3. Step 3: Cross multiply
    36,515.81x = 50,391.82 × 19,748.81
  4. Step 4: Simplify right side
    36,515.81x = 995,178,629.40
  5. Step 5: Solve for x
    x = 995,178,629.40/36,515.81
  6. Step 6: Final answer
    x = 27,253.36

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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.