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Finding the Fourth Proportional to 61,805.96, 85,291.62 and 33,511.16

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Solution

The fourth proportional to 61,805.96, 85,291.62 and 33,511.16 is: 46,245.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,805.96 : 85,291.62 = 33,511.16 : x
  2. Step 2: Convert to fraction form
    61,805.96/85,291.62 = 33,511.16/x
  3. Step 3: Cross multiply
    61,805.96x = 85,291.62 × 33,511.16
  4. Step 4: Simplify right side
    61,805.96x = 2,858,221,124.48
  5. Step 5: Solve for x
    x = 2,858,221,124.48/61,805.96
  6. Step 6: Final answer
    x = 46,245.07

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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.