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Finding the Fourth Proportional to 18,186, 25,096.95 and 11,110.92

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Solution

The fourth proportional to 18,186, 25,096.95 and 11,110.92 is: 15,333.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,186 : 25,096.95 = 11,110.92 : x
  2. Step 2: Convert to fraction form
    18,186/25,096.95 = 11,110.92/x
  3. Step 3: Cross multiply
    18,186x = 25,096.95 × 11,110.92
  4. Step 4: Simplify right side
    18,186x = 278,850,203.69
  5. Step 5: Solve for x
    x = 278,850,203.69/18,186
  6. Step 6: Final answer
    x = 15,333.23

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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.