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Finding the Fourth Proportional to 65,939.84, 90,996.99 and 35,725.37

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Solution

The fourth proportional to 65,939.84, 90,996.99 and 35,725.37 is: 49,301.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,939.84 : 90,996.99 = 35,725.37 : x
  2. Step 2: Convert to fraction form
    65,939.84/90,996.99 = 35,725.37/x
  3. Step 3: Cross multiply
    65,939.84x = 90,996.99 × 35,725.37
  4. Step 4: Simplify right side
    65,939.84x = 3,250,900,681.65
  5. Step 5: Solve for x
    x = 3,250,900,681.65/65,939.84
  6. Step 6: Final answer
    x = 49,301.01

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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.