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Finding the Fourth Proportional to 23,918.20, 35,879.12 and 7,279.65

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Solution

The fourth proportional to 23,918.20, 35,879.12 and 7,279.65 is: 10,920.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,918.20 : 35,879.12 = 7,279.65 : x
  2. Step 2: Convert to fraction form
    23,918.20/35,879.12 = 7,279.65/x
  3. Step 3: Cross multiply
    23,918.20x = 35,879.12 × 7,279.65
  4. Step 4: Simplify right side
    23,918.20x = 261,187,426.81
  5. Step 5: Solve for x
    x = 261,187,426.81/23,918.20
  6. Step 6: Final answer
    x = 10,920.03

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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.