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Finding the Fourth Proportional to 15,174.38, 20,944.00 and 9,859.97

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Solution

The fourth proportional to 15,174.38, 20,944.00 and 9,859.97 is: 13,608.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,174.38 : 20,944.00 = 9,859.97 : x
  2. Step 2: Convert to fraction form
    15,174.38/20,944.00 = 9,859.97/x
  3. Step 3: Cross multiply
    15,174.38x = 20,944.00 × 9,859.97
  4. Step 4: Simplify right side
    15,174.38x = 206,507,276.36
  5. Step 5: Solve for x
    x = 206,507,276.36/15,174.38
  6. Step 6: Final answer
    x = 13,608.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.