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Finding the Fourth Proportional to 61,109.82, 91,663.99 and 16,736.54

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Solution

The fourth proportional to 61,109.82, 91,663.99 and 16,736.54 is: 25,104.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,109.82 : 91,663.99 = 16,736.54 : x
  2. Step 2: Convert to fraction form
    61,109.82/91,663.99 = 16,736.54/x
  3. Step 3: Cross multiply
    61,109.82x = 91,663.99 × 16,736.54
  4. Step 4: Simplify right side
    61,109.82x = 1,534,137,535.03
  5. Step 5: Solve for x
    x = 1,534,137,535.03/61,109.82
  6. Step 6: Final answer
    x = 25,104.60

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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.