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Finding the Fourth Proportional to 18,593.92, 25,664.48 and 11,516.32

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Solution

The fourth proportional to 18,593.92, 25,664.48 and 11,516.32 is: 15,895.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,593.92 : 25,664.48 = 11,516.32 : x
  2. Step 2: Convert to fraction form
    18,593.92/25,664.48 = 11,516.32/x
  3. Step 3: Cross multiply
    18,593.92x = 25,664.48 × 11,516.32
  4. Step 4: Simplify right side
    18,593.92x = 295,560,364.31
  5. Step 5: Solve for x
    x = 295,560,364.31/18,593.92
  6. Step 6: Final answer
    x = 15,895.54

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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.