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Finding the Fourth Proportional to 64,891.96, 97,338.06 and 18,144.82

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Solution

The fourth proportional to 64,891.96, 97,338.06 and 18,144.82 is: 27,217.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,891.96 : 97,338.06 = 18,144.82 : x
  2. Step 2: Convert to fraction form
    64,891.96/97,338.06 = 18,144.82/x
  3. Step 3: Cross multiply
    64,891.96x = 97,338.06 × 18,144.82
  4. Step 4: Simplify right side
    64,891.96x = 1,766,181,577.85
  5. Step 5: Solve for x
    x = 1,766,181,577.85/64,891.96
  6. Step 6: Final answer
    x = 27,217.26

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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.