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Finding the Fourth Proportional to 65,939.57, 90,996.56 and 35,725.00

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Solution

The fourth proportional to 65,939.57, 90,996.56 and 35,725.00 is: 49,300.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,939.57 : 90,996.56 = 35,725.00 : x
  2. Step 2: Convert to fraction form
    65,939.57/90,996.56 = 35,725.00/x
  3. Step 3: Cross multiply
    65,939.57x = 90,996.56 × 35,725.00
  4. Step 4: Simplify right side
    65,939.57x = 3,250,852,205.42
  5. Step 5: Solve for x
    x = 3,250,852,205.42/65,939.57
  6. Step 6: Final answer
    x = 49,300.48

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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.