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Finding the Fourth Proportional to 41,208, 61,810.80 and 19,021.68

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Solution

The fourth proportional to 41,208, 61,810.80 and 19,021.68 is: 28,531.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,208 : 61,810.80 = 19,021.68 : x
  2. Step 2: Convert to fraction form
    41,208/61,810.80 = 19,021.68/x
  3. Step 3: Cross multiply
    41,208x = 61,810.80 × 19,021.68
  4. Step 4: Simplify right side
    41,208x = 1,175,745,258.14
  5. Step 5: Solve for x
    x = 1,175,745,258.14/41,208
  6. Step 6: Final answer
    x = 28,531.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.