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Finding the Fourth Proportional to 34,608.80, 51,878.64 and 17,091.20

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Solution

The fourth proportional to 34,608.80, 51,878.64 and 17,091.20 is: 25,619.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,608.80 : 51,878.64 = 17,091.20 : x
  2. Step 2: Convert to fraction form
    34,608.80/51,878.64 = 17,091.20/x
  3. Step 3: Cross multiply
    34,608.80x = 51,878.64 × 17,091.20
  4. Step 4: Simplify right side
    34,608.80x = 886,668,211.97
  5. Step 5: Solve for x
    x = 886,668,211.97/34,608.80
  6. Step 6: Final answer
    x = 25,619.73

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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.