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Finding the Fourth Proportional to 18,179.92, 25,089 and 10,222.12

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Solution

The fourth proportional to 18,179.92, 25,089 and 10,222.12 is: 14,106.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,179.92 : 25,089 = 10,222.12 : x
  2. Step 2: Convert to fraction form
    18,179.92/25,089 = 10,222.12/x
  3. Step 3: Cross multiply
    18,179.92x = 25,089 × 10,222.12
  4. Step 4: Simplify right side
    18,179.92x = 256,462,768.68
  5. Step 5: Solve for x
    x = 256,462,768.68/18,179.92
  6. Step 6: Final answer
    x = 14,106.93

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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.