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Finding the Fourth Proportional to 33,820.50, 46,674.45 and 18,916.50

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Solution

The fourth proportional to 33,820.50, 46,674.45 and 18,916.50 is: 26,105.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,820.50 : 46,674.45 = 18,916.50 : x
  2. Step 2: Convert to fraction form
    33,820.50/46,674.45 = 18,916.50/x
  3. Step 3: Cross multiply
    33,820.50x = 46,674.45 × 18,916.50
  4. Step 4: Simplify right side
    33,820.50x = 882,917,233.43
  5. Step 5: Solve for x
    x = 882,917,233.43/33,820.50
  6. Step 6: Final answer
    x = 26,105.98

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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.