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Finding the Fourth Proportional to 27,910.28, 41,865.36 and 7,133.72

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Solution

The fourth proportional to 27,910.28, 41,865.36 and 7,133.72 is: 10,700.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,910.28 : 41,865.36 = 7,133.72 : x
  2. Step 2: Convert to fraction form
    27,910.28/41,865.36 = 7,133.72/x
  3. Step 3: Cross multiply
    27,910.28x = 41,865.36 × 7,133.72
  4. Step 4: Simplify right side
    27,910.28x = 298,655,755.94
  5. Step 5: Solve for x
    x = 298,655,755.94/27,910.28
  6. Step 6: Final answer
    x = 10,700.56

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1.5x scale

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.