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Finding the Fourth Proportional to 65,908.73, 98,863.11 and 15,988.41

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Solution

The fourth proportional to 65,908.73, 98,863.11 and 15,988.41 is: 23,982.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,908.73 : 98,863.11 = 15,988.41 : x
  2. Step 2: Convert to fraction form
    65,908.73/98,863.11 = 15,988.41/x
  3. Step 3: Cross multiply
    65,908.73x = 98,863.11 × 15,988.41
  4. Step 4: Simplify right side
    65,908.73x = 1,580,663,936.56
  5. Step 5: Solve for x
    x = 1,580,663,936.56/65,908.73
  6. Step 6: Final answer
    x = 23,982.62

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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.