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Finding the Fourth Proportional to 18,629.92, 27,906.54 and 9,846.28

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Solution

The fourth proportional to 18,629.92, 27,906.54 and 9,846.28 is: 14,749.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,629.92 : 27,906.54 = 9,846.28 : x
  2. Step 2: Convert to fraction form
    18,629.92/27,906.54 = 9,846.28/x
  3. Step 3: Cross multiply
    18,629.92x = 27,906.54 × 9,846.28
  4. Step 4: Simplify right side
    18,629.92x = 274,775,606.67
  5. Step 5: Solve for x
    x = 274,775,606.67/18,629.92
  6. Step 6: Final answer
    x = 14,749.16

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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.