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Finding the Fourth Proportional to 54,608.10, 81,912.15 and 17,672.10

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Solution

The fourth proportional to 54,608.10, 81,912.15 and 17,672.10 is: 26,508.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,608.10 : 81,912.15 = 17,672.10 : x
  2. Step 2: Convert to fraction form
    54,608.10/81,912.15 = 17,672.10/x
  3. Step 3: Cross multiply
    54,608.10x = 81,912.15 × 17,672.10
  4. Step 4: Simplify right side
    54,608.10x = 1,447,559,706.02
  5. Step 5: Solve for x
    x = 1,447,559,706.02/54,608.10
  6. Step 6: Final answer
    x = 26,508.15

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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.