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Finding the Fourth Proportional to 34,668.92, 47,843.12 and 19,564.79

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Solution

The fourth proportional to 34,668.92, 47,843.12 and 19,564.79 is: 26,999.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,668.92 : 47,843.12 = 19,564.79 : x
  2. Step 2: Convert to fraction form
    34,668.92/47,843.12 = 19,564.79/x
  3. Step 3: Cross multiply
    34,668.92x = 47,843.12 × 19,564.79
  4. Step 4: Simplify right side
    34,668.92x = 936,040,405.44
  5. Step 5: Solve for x
    x = 936,040,405.44/34,668.92
  6. Step 6: Final answer
    x = 26,999.41

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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.