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Finding the Fourth Proportional to 65,916.82, 98,892.03 and 19,169.69

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Solution

The fourth proportional to 65,916.82, 98,892.03 and 19,169.69 is: 28,759.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,916.82 : 98,892.03 = 19,169.69 : x
  2. Step 2: Convert to fraction form
    65,916.82/98,892.03 = 19,169.69/x
  3. Step 3: Cross multiply
    65,916.82x = 98,892.03 × 19,169.69
  4. Step 4: Simplify right side
    65,916.82x = 1,895,729,558.57
  5. Step 5: Solve for x
    x = 1,895,729,558.57/65,916.82
  6. Step 6: Final answer
    x = 28,759.42

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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.