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Finding the Fourth Proportional to 17,858.72, 26,788.73 and 6,766.22

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Solution

The fourth proportional to 17,858.72, 26,788.73 and 6,766.22 is: 10,149.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,858.72 : 26,788.73 = 6,766.22 : x
  2. Step 2: Convert to fraction form
    17,858.72/26,788.73 = 6,766.22/x
  3. Step 3: Cross multiply
    17,858.72x = 26,788.73 × 6,766.22
  4. Step 4: Simplify right side
    17,858.72x = 181,258,272.93
  5. Step 5: Solve for x
    x = 181,258,272.93/17,858.72
  6. Step 6: Final answer
    x = 10,149.57

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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.