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Finding the Fourth Proportional to 54,008.75, 81,013.13 and 17,072.75

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Solution

The fourth proportional to 54,008.75, 81,013.13 and 17,072.75 is: 25,609.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,008.75 : 81,013.13 = 17,072.75 : x
  2. Step 2: Convert to fraction form
    54,008.75/81,013.13 = 17,072.75/x
  3. Step 3: Cross multiply
    54,008.75x = 81,013.13 × 17,072.75
  4. Step 4: Simplify right side
    54,008.75x = 1,383,116,915.21
  5. Step 5: Solve for x
    x = 1,383,116,915.21/54,008.75
  6. Step 6: Final answer
    x = 25,609.13

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1.5x scale

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.