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Finding the Fourth Proportional to 9,912.12, 13,673.52 and 5,932.05

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Solution

The fourth proportional to 9,912.12, 13,673.52 and 5,932.05 is: 8,183.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,912.12 : 13,673.52 = 5,932.05 : x
  2. Step 2: Convert to fraction form
    9,912.12/13,673.52 = 5,932.05/x
  3. Step 3: Cross multiply
    9,912.12x = 13,673.52 × 5,932.05
  4. Step 4: Simplify right side
    9,912.12x = 81,112,004.32
  5. Step 5: Solve for x
    x = 81,112,004.32/9,912.12
  6. Step 6: Final answer
    x = 8,183.11

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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.