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Finding the Fourth Proportional to 7,992.74, 11,989.92 and 3,064.70

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Solution

The fourth proportional to 7,992.74, 11,989.92 and 3,064.70 is: 4,597.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,992.74 : 11,989.92 = 3,064.70 : x
  2. Step 2: Convert to fraction form
    7,992.74/11,989.92 = 3,064.70/x
  3. Step 3: Cross multiply
    7,992.74x = 11,989.92 × 3,064.70
  4. Step 4: Simplify right side
    7,992.74x = 36,745,507.82
  5. Step 5: Solve for x
    x = 36,745,507.82/7,992.74
  6. Step 6: Final answer
    x = 4,597.36

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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.