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Finding the Fourth Proportional to 16,655.08, 24,990.72 and 7,879.54

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Solution

The fourth proportional to 16,655.08, 24,990.72 and 7,879.54 is: 11,823.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,655.08 : 24,990.72 = 7,879.54 : x
  2. Step 2: Convert to fraction form
    16,655.08/24,990.72 = 7,879.54/x
  3. Step 3: Cross multiply
    16,655.08x = 24,990.72 × 7,879.54
  4. Step 4: Simplify right side
    16,655.08x = 196,915,377.87
  5. Step 5: Solve for x
    x = 196,915,377.87/16,655.08
  6. Step 6: Final answer
    x = 11,823.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.