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Finding the Fourth Proportional to 7,999.38, 12,016.49 and 7,736.94

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Solution

The fourth proportional to 7,999.38, 12,016.49 and 7,736.94 is: 11,622.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.38 : 12,016.49 = 7,736.94 : x
  2. Step 2: Convert to fraction form
    7,999.38/12,016.49 = 7,736.94/x
  3. Step 3: Cross multiply
    7,999.38x = 12,016.49 × 7,736.94
  4. Step 4: Simplify right side
    7,999.38x = 92,970,823.46
  5. Step 5: Solve for x
    x = 92,970,823.46/7,999.38
  6. Step 6: Final answer
    x = 11,622.25

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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.