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Finding the Fourth Proportional to 61,674, 85,110.12 and 33,379.92

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Solution

The fourth proportional to 61,674, 85,110.12 and 33,379.92 is: 46,064.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,674 : 85,110.12 = 33,379.92 : x
  2. Step 2: Convert to fraction form
    61,674/85,110.12 = 33,379.92/x
  3. Step 3: Cross multiply
    61,674x = 85,110.12 × 33,379.92
  4. Step 4: Simplify right side
    61,674x = 2,840,968,996.79
  5. Step 5: Solve for x
    x = 2,840,968,996.79/61,674
  6. Step 6: Final answer
    x = 46,064.29

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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.