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Finding the Fourth Proportional to 16,763.68, 25,153.80 and 7,879.69

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Solution

The fourth proportional to 16,763.68, 25,153.80 and 7,879.69 is: 11,823.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,763.68 : 25,153.80 = 7,879.69 : x
  2. Step 2: Convert to fraction form
    16,763.68/25,153.80 = 7,879.69/x
  3. Step 3: Cross multiply
    16,763.68x = 25,153.80 × 7,879.69
  4. Step 4: Simplify right side
    16,763.68x = 198,204,146.32
  5. Step 5: Solve for x
    x = 198,204,146.32/16,763.68
  6. Step 6: Final answer
    x = 11,823.43

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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.