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Finding the Fourth Proportional to 33,779.92, 46,615.55 and 18,672

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Solution

The fourth proportional to 33,779.92, 46,615.55 and 18,672 is: 25,766.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,779.92 : 46,615.55 = 18,672 : x
  2. Step 2: Convert to fraction form
    33,779.92/46,615.55 = 18,672/x
  3. Step 3: Cross multiply
    33,779.92x = 46,615.55 × 18,672
  4. Step 4: Simplify right side
    33,779.92x = 870,405,456.24
  5. Step 5: Solve for x
    x = 870,405,456.24/33,779.92
  6. Step 6: Final answer
    x = 25,766.95

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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.