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Finding the Fourth Proportional to 61,921.67, 85,451.14 and 33,627.56

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Solution

The fourth proportional to 61,921.67, 85,451.14 and 33,627.56 is: 46,405.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,921.67 : 85,451.14 = 33,627.56 : x
  2. Step 2: Convert to fraction form
    61,921.67/85,451.14 = 33,627.56/x
  3. Step 3: Cross multiply
    61,921.67x = 85,451.14 × 33,627.56
  4. Step 4: Simplify right side
    61,921.67x = 2,873,513,337.42
  5. Step 5: Solve for x
    x = 2,873,513,337.42/61,921.67
  6. Step 6: Final answer
    x = 46,405.62

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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.