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Finding the Fourth Proportional to 18,233.92, 25,167 and 11,164.24

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Solution

The fourth proportional to 18,233.92, 25,167 and 11,164.24 is: 15,409.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,233.92 : 25,167 = 11,164.24 : x
  2. Step 2: Convert to fraction form
    18,233.92/25,167 = 11,164.24/x
  3. Step 3: Cross multiply
    18,233.92x = 25,167 × 11,164.24
  4. Step 4: Simplify right side
    18,233.92x = 280,970,428.08
  5. Step 5: Solve for x
    x = 280,970,428.08/18,233.92
  6. Step 6: Final answer
    x = 15,409.22

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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.