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Finding the Fourth Proportional to 18,441.79, 27,664.26 and 7,912.27

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Solution

The fourth proportional to 18,441.79, 27,664.26 and 7,912.27 is: 11,869.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,441.79 : 27,664.26 = 7,912.27 : x
  2. Step 2: Convert to fraction form
    18,441.79/27,664.26 = 7,912.27/x
  3. Step 3: Cross multiply
    18,441.79x = 27,664.26 × 7,912.27
  4. Step 4: Simplify right side
    18,441.79x = 218,887,094.47
  5. Step 5: Solve for x
    x = 218,887,094.47/18,441.79
  6. Step 6: Final answer
    x = 11,869.08

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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.