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Finding the Fourth Proportional to 61,794.72, 85,276.80 and 33,500.40

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Solution

The fourth proportional to 61,794.72, 85,276.80 and 33,500.40 is: 46,230.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,794.72 : 85,276.80 = 33,500.40 : x
  2. Step 2: Convert to fraction form
    61,794.72/85,276.80 = 33,500.40/x
  3. Step 3: Cross multiply
    61,794.72x = 85,276.80 × 33,500.40
  4. Step 4: Simplify right side
    61,794.72x = 2,856,806,910.72
  5. Step 5: Solve for x
    x = 2,856,806,910.72/61,794.72
  6. Step 6: Final answer
    x = 46,230.60

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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.