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Finding the Fourth Proportional to 17,209.73, 25,698.03 and 13,659.91

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Solution

The fourth proportional to 17,209.73, 25,698.03 and 13,659.91 is: 20,397.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,209.73 : 25,698.03 = 13,659.91 : x
  2. Step 2: Convert to fraction form
    17,209.73/25,698.03 = 13,659.91/x
  3. Step 3: Cross multiply
    17,209.73x = 25,698.03 × 13,659.91
  4. Step 4: Simplify right side
    17,209.73x = 351,032,661.51
  5. Step 5: Solve for x
    x = 351,032,661.51/17,209.73
  6. Step 6: Final answer
    x = 20,397.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.