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Finding the Fourth Proportional to 38,469.40, 57,704.10 and 17,409.40

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Solution

The fourth proportional to 38,469.40, 57,704.10 and 17,409.40 is: 26,114.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,469.40 : 57,704.10 = 17,409.40 : x
  2. Step 2: Convert to fraction form
    38,469.40/57,704.10 = 17,409.40/x
  3. Step 3: Cross multiply
    38,469.40x = 57,704.10 × 17,409.40
  4. Step 4: Simplify right side
    38,469.40x = 1,004,593,758.54
  5. Step 5: Solve for x
    x = 1,004,593,758.54/38,469.40
  6. Step 6: Final answer
    x = 26,114.10

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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.