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Finding the Fourth Proportional to 17,809.97, 26,705.09 and 7,287.38

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Solution

The fourth proportional to 17,809.97, 26,705.09 and 7,287.38 is: 10,927.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,809.97 : 26,705.09 = 7,287.38 : x
  2. Step 2: Convert to fraction form
    17,809.97/26,705.09 = 7,287.38/x
  3. Step 3: Cross multiply
    17,809.97x = 26,705.09 × 7,287.38
  4. Step 4: Simplify right side
    17,809.97x = 194,609,968.80
  5. Step 5: Solve for x
    x = 194,609,968.80/17,809.97
  6. Step 6: Final answer
    x = 10,927.03

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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.