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Finding the Fourth Proportional to 61,959.73, 85,505.21 and 33,665.89

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Solution

The fourth proportional to 61,959.73, 85,505.21 and 33,665.89 is: 46,459.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,959.73 : 85,505.21 = 33,665.89 : x
  2. Step 2: Convert to fraction form
    61,959.73/85,505.21 = 33,665.89/x
  3. Step 3: Cross multiply
    61,959.73x = 85,505.21 × 33,665.89
  4. Step 4: Simplify right side
    61,959.73x = 2,878,608,825.96
  5. Step 5: Solve for x
    x = 2,878,608,825.96/61,959.73
  6. Step 6: Final answer
    x = 46,459.35

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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.