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Finding the Fourth Proportional to 18,222.92, 25,147.01 and 11,053.67

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Solution

The fourth proportional to 18,222.92, 25,147.01 and 11,053.67 is: 15,253.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,222.92 : 25,147.01 = 11,053.67 : x
  2. Step 2: Convert to fraction form
    18,222.92/25,147.01 = 11,053.67/x
  3. Step 3: Cross multiply
    18,222.92x = 25,147.01 × 11,053.67
  4. Step 4: Simplify right side
    18,222.92x = 277,966,589.75
  5. Step 5: Solve for x
    x = 277,966,589.75/18,222.92
  6. Step 6: Final answer
    x = 15,253.68

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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.