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Finding the Fourth Proportional to 33,478.90, 46,198.80 and 18,368.50

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Solution

The fourth proportional to 33,478.90, 46,198.80 and 18,368.50 is: 25,347.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,478.90 : 46,198.80 = 18,368.50 : x
  2. Step 2: Convert to fraction form
    33,478.90/46,198.80 = 18,368.50/x
  3. Step 3: Cross multiply
    33,478.90x = 46,198.80 × 18,368.50
  4. Step 4: Simplify right side
    33,478.90x = 848,602,657.80
  5. Step 5: Solve for x
    x = 848,602,657.80/33,478.90
  6. Step 6: Final answer
    x = 25,347.39

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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.