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Finding the Fourth Proportional to 18,124.16, 25,012.60 and 11,049.62

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Solution

The fourth proportional to 18,124.16, 25,012.60 and 11,049.62 is: 15,249.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,124.16 : 25,012.60 = 11,049.62 : x
  2. Step 2: Convert to fraction form
    18,124.16/25,012.60 = 11,049.62/x
  3. Step 3: Cross multiply
    18,124.16x = 25,012.60 × 11,049.62
  4. Step 4: Simplify right side
    18,124.16x = 276,379,572.52
  5. Step 5: Solve for x
    x = 276,379,572.52/18,124.16
  6. Step 6: Final answer
    x = 15,249.24

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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.