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Finding the Fourth Proportional to 7,954.02, 11,912.85 and 3,796.95

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Solution

The fourth proportional to 7,954.02, 11,912.85 and 3,796.95 is: 5,686.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,954.02 : 11,912.85 = 3,796.95 : x
  2. Step 2: Convert to fraction form
    7,954.02/11,912.85 = 3,796.95/x
  3. Step 3: Cross multiply
    7,954.02x = 11,912.85 × 3,796.95
  4. Step 4: Simplify right side
    7,954.02x = 45,232,495.81
  5. Step 5: Solve for x
    x = 45,232,495.81/7,954.02
  6. Step 6: Final answer
    x = 5,686.75

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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.