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Finding the Fourth Proportional to 92,729.70, 127,972.39 and 51,893.48

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Solution

The fourth proportional to 92,729.70, 127,972.39 and 51,893.48 is: 71,616.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,729.70 : 127,972.39 = 51,893.48 : x
  2. Step 2: Convert to fraction form
    92,729.70/127,972.39 = 51,893.48/x
  3. Step 3: Cross multiply
    92,729.70x = 127,972.39 × 51,893.48
  4. Step 4: Simplify right side
    92,729.70x = 6,640,932,661.02
  5. Step 5: Solve for x
    x = 6,640,932,661.02/92,729.70
  6. Step 6: Final answer
    x = 71,616.03

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1.5x scale

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.