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Finding the Fourth Proportional to 7,965.38, 10,992.44 and 4,608.48

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Solution

The fourth proportional to 7,965.38, 10,992.44 and 4,608.48 is: 6,359.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.38 : 10,992.44 = 4,608.48 : x
  2. Step 2: Convert to fraction form
    7,965.38/10,992.44 = 4,608.48/x
  3. Step 3: Cross multiply
    7,965.38x = 10,992.44 × 4,608.48
  4. Step 4: Simplify right side
    7,965.38x = 50,658,439.89
  5. Step 5: Solve for x
    x = 50,658,439.89/7,965.38
  6. Step 6: Final answer
    x = 6,359.83

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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.