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Finding the Fourth Proportional to 54,751.73, 82,142.19 and 17,312.51

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Solution

The fourth proportional to 54,751.73, 82,142.19 and 17,312.51 is: 25,973.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,751.73 : 82,142.19 = 17,312.51 : x
  2. Step 2: Convert to fraction form
    54,751.73/82,142.19 = 17,312.51/x
  3. Step 3: Cross multiply
    54,751.73x = 82,142.19 × 17,312.51
  4. Step 4: Simplify right side
    54,751.73x = 1,422,087,485.80
  5. Step 5: Solve for x
    x = 1,422,087,485.80/54,751.73
  6. Step 6: Final answer
    x = 25,973.38

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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.