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Finding the Fourth Proportional to 18,467.27, 25,484.81 and 10,916.33

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Solution

The fourth proportional to 18,467.27, 25,484.81 and 10,916.33 is: 15,064.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,467.27 : 25,484.81 = 10,916.33 : x
  2. Step 2: Convert to fraction form
    18,467.27/25,484.81 = 10,916.33/x
  3. Step 3: Cross multiply
    18,467.27x = 25,484.81 × 10,916.33
  4. Step 4: Simplify right side
    18,467.27x = 278,200,413.94
  5. Step 5: Solve for x
    x = 278,200,413.94/18,467.27
  6. Step 6: Final answer
    x = 15,064.52

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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.