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Finding the Fourth Proportional to 17,620.65, 26,379.12 and 11,762.73

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Solution

The fourth proportional to 17,620.65, 26,379.12 and 11,762.73 is: 17,609.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,620.65 : 26,379.12 = 11,762.73 : x
  2. Step 2: Convert to fraction form
    17,620.65/26,379.12 = 11,762.73/x
  3. Step 3: Cross multiply
    17,620.65x = 26,379.12 × 11,762.73
  4. Step 4: Simplify right side
    17,620.65x = 310,290,466.20
  5. Step 5: Solve for x
    x = 310,290,466.20/17,620.65
  6. Step 6: Final answer
    x = 17,609.48

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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.