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Finding the Fourth Proportional to 17,765.82, 26,648.73 and 5,286.03

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Solution

The fourth proportional to 17,765.82, 26,648.73 and 5,286.03 is: 7,929.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,765.82 : 26,648.73 = 5,286.03 : x
  2. Step 2: Convert to fraction form
    17,765.82/26,648.73 = 5,286.03/x
  3. Step 3: Cross multiply
    17,765.82x = 26,648.73 × 5,286.03
  4. Step 4: Simplify right side
    17,765.82x = 140,865,986.24
  5. Step 5: Solve for x
    x = 140,865,986.24/17,765.82
  6. Step 6: Final answer
    x = 7,929.05

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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.