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Finding the Fourth Proportional to 53,825.70, 80,702.10 and 27,508.80

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Solution

The fourth proportional to 53,825.70, 80,702.10 and 27,508.80 is: 41,244.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,825.70 : 80,702.10 = 27,508.80 : x
  2. Step 2: Convert to fraction form
    53,825.70/80,702.10 = 27,508.80/x
  3. Step 3: Cross multiply
    53,825.70x = 80,702.10 × 27,508.80
  4. Step 4: Simplify right side
    53,825.70x = 2,220,017,928.48
  5. Step 5: Solve for x
    x = 2,220,017,928.48/53,825.70
  6. Step 6: Final answer
    x = 41,244.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.