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Finding the Fourth Proportional to 61,874.75, 85,387.19 and 33,580.43

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Solution

The fourth proportional to 61,874.75, 85,387.19 and 33,580.43 is: 46,341.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,874.75 : 85,387.19 = 33,580.43 : x
  2. Step 2: Convert to fraction form
    61,874.75/85,387.19 = 33,580.43/x
  3. Step 3: Cross multiply
    61,874.75x = 85,387.19 × 33,580.43
  4. Step 4: Simplify right side
    61,874.75x = 2,867,338,556.69
  5. Step 5: Solve for x
    x = 2,867,338,556.69/61,874.75
  6. Step 6: Final answer
    x = 46,341.01

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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.