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Finding the Fourth Proportional to 33,684.50, 46,484.62 and 18,780.50

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Solution

The fourth proportional to 33,684.50, 46,484.62 and 18,780.50 is: 25,917.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,684.50 : 46,484.62 = 18,780.50 : x
  2. Step 2: Convert to fraction form
    33,684.50/46,484.62 = 18,780.50/x
  3. Step 3: Cross multiply
    33,684.50x = 46,484.62 × 18,780.50
  4. Step 4: Simplify right side
    33,684.50x = 873,004,405.91
  5. Step 5: Solve for x
    x = 873,004,405.91/33,684.50
  6. Step 6: Final answer
    x = 25,917.10

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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.