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Finding the Fourth Proportional to 17,161.28, 25,735.28 and 7,305.12

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Solution

The fourth proportional to 17,161.28, 25,735.28 and 7,305.12 is: 10,954.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,161.28 : 25,735.28 = 7,305.12 : x
  2. Step 2: Convert to fraction form
    17,161.28/25,735.28 = 7,305.12/x
  3. Step 3: Cross multiply
    17,161.28x = 25,735.28 × 7,305.12
  4. Step 4: Simplify right side
    17,161.28x = 187,999,308.63
  5. Step 5: Solve for x
    x = 187,999,308.63/17,161.28
  6. Step 6: Final answer
    x = 10,954.85

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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.