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Finding the Fourth Proportional to 17,675.78, 26,513.67 and 7,287.26

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Solution

The fourth proportional to 17,675.78, 26,513.67 and 7,287.26 is: 10,930.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,675.78 : 26,513.67 = 7,287.26 : x
  2. Step 2: Convert to fraction form
    17,675.78/26,513.67 = 7,287.26/x
  3. Step 3: Cross multiply
    17,675.78x = 26,513.67 × 7,287.26
  4. Step 4: Simplify right side
    17,675.78x = 193,212,006.84
  5. Step 5: Solve for x
    x = 193,212,006.84/17,675.78
  6. Step 6: Final answer
    x = 10,930.89

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Similar ratio
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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.