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Finding the Fourth Proportional to 5,193.92, 7,786.23 and 1,906.25

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Solution

The fourth proportional to 5,193.92, 7,786.23 and 1,906.25 is: 2,857.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,193.92 : 7,786.23 = 1,906.25 : x
  2. Step 2: Convert to fraction form
    5,193.92/7,786.23 = 1,906.25/x
  3. Step 3: Cross multiply
    5,193.92x = 7,786.23 × 1,906.25
  4. Step 4: Simplify right side
    5,193.92x = 14,842,462.01
  5. Step 5: Solve for x
    x = 14,842,462.01/5,193.92
  6. Step 6: Final answer
    x = 2,857.66

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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.