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Finding the Fourth Proportional to 54,991.88, 75,889 and 29,841.38

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Solution

The fourth proportional to 54,991.88, 75,889 and 29,841.38 is: 41,181.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,991.88 : 75,889 = 29,841.38 : x
  2. Step 2: Convert to fraction form
    54,991.88/75,889 = 29,841.38/x
  3. Step 3: Cross multiply
    54,991.88x = 75,889 × 29,841.38
  4. Step 4: Simplify right side
    54,991.88x = 2,264,632,486.82
  5. Step 5: Solve for x
    x = 2,264,632,486.82/54,991.88
  6. Step 6: Final answer
    x = 41,181.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.