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Finding the Fourth Proportional to 17,745.57, 26,619.72 and 10,350.78

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Solution

The fourth proportional to 17,745.57, 26,619.72 and 10,350.78 is: 15,526.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,745.57 : 26,619.72 = 10,350.78 : x
  2. Step 2: Convert to fraction form
    17,745.57/26,619.72 = 10,350.78/x
  3. Step 3: Cross multiply
    17,745.57x = 26,619.72 × 10,350.78
  4. Step 4: Simplify right side
    17,745.57x = 275,534,865.38
  5. Step 5: Solve for x
    x = 275,534,865.38/17,745.57
  6. Step 6: Final answer
    x = 15,526.97

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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.