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Finding the Fourth Proportional to 36,509.72, 50,383.40 and 19,742.72

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Solution

The fourth proportional to 36,509.72, 50,383.40 and 19,742.72 is: 27,244.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,509.72 : 50,383.40 = 19,742.72 : x
  2. Step 2: Convert to fraction form
    36,509.72/50,383.40 = 19,742.72/x
  3. Step 3: Cross multiply
    36,509.72x = 50,383.40 × 19,742.72
  4. Step 4: Simplify right side
    36,509.72x = 994,705,358.85
  5. Step 5: Solve for x
    x = 994,705,358.85/36,509.72
  6. Step 6: Final answer
    x = 27,244.95

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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.