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Finding the Fourth Proportional to 34,998.82, 48,299.29 and 21,578.94

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Solution

The fourth proportional to 34,998.82, 48,299.29 and 21,578.94 is: 29,779.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,998.82 : 48,299.29 = 21,578.94 : x
  2. Step 2: Convert to fraction form
    34,998.82/48,299.29 = 21,578.94/x
  3. Step 3: Cross multiply
    34,998.82x = 48,299.29 × 21,578.94
  4. Step 4: Simplify right side
    34,998.82x = 1,042,247,427.01
  5. Step 5: Solve for x
    x = 1,042,247,427.01/34,998.82
  6. Step 6: Final answer
    x = 29,779.50

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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.