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Finding the Fourth Proportional to 61,800, 85,283.52 and 33,504.96

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Solution

The fourth proportional to 61,800, 85,283.52 and 33,504.96 is: 46,236.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,800 : 85,283.52 = 33,504.96 : x
  2. Step 2: Convert to fraction form
    61,800/85,283.52 = 33,504.96/x
  3. Step 3: Cross multiply
    61,800x = 85,283.52 × 33,504.96
  4. Step 4: Simplify right side
    61,800x = 2,857,420,926.26
  5. Step 5: Solve for x
    x = 2,857,420,926.26/61,800
  6. Step 6: Final answer
    x = 46,236.58

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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.