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Finding the Fourth Proportional to 17,171.97, 23,695.73 and 9,719.97

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Solution

The fourth proportional to 17,171.97, 23,695.73 and 9,719.97 is: 13,412.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,171.97 : 23,695.73 = 9,719.97 : x
  2. Step 2: Convert to fraction form
    17,171.97/23,695.73 = 9,719.97/x
  3. Step 3: Cross multiply
    17,171.97x = 23,695.73 × 9,719.97
  4. Step 4: Simplify right side
    17,171.97x = 230,321,736.13
  5. Step 5: Solve for x
    x = 230,321,736.13/17,171.97
  6. Step 6: Final answer
    x = 13,412.66

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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.