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Finding the Fourth Proportional to 10,091.84, 15,093.92 and 5,921.92

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Solution

The fourth proportional to 10,091.84, 15,093.92 and 5,921.92 is: 8,857.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,091.84 : 15,093.92 = 5,921.92 : x
  2. Step 2: Convert to fraction form
    10,091.84/15,093.92 = 5,921.92/x
  3. Step 3: Cross multiply
    10,091.84x = 15,093.92 × 5,921.92
  4. Step 4: Simplify right side
    10,091.84x = 89,384,986.73
  5. Step 5: Solve for x
    x = 89,384,986.73/10,091.84
  6. Step 6: Final answer
    x = 8,857.15

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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.