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Finding the Fourth Proportional to 54,758.51, 82,147.90 and 17,328

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Solution

The fourth proportional to 54,758.51, 82,147.90 and 17,328 is: 25,995.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,758.51 : 82,147.90 = 17,328 : x
  2. Step 2: Convert to fraction form
    54,758.51/82,147.90 = 17,328/x
  3. Step 3: Cross multiply
    54,758.51x = 82,147.90 × 17,328
  4. Step 4: Simplify right side
    54,758.51x = 1,423,458,767.88
  5. Step 5: Solve for x
    x = 1,423,458,767.88/54,758.51
  6. Step 6: Final answer
    x = 25,995.21

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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.