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Finding the Fourth Proportional to 65,935.35, 90,990.41 and 35,721.27

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Solution

The fourth proportional to 65,935.35, 90,990.41 and 35,721.27 is: 49,295.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,935.35 : 90,990.41 = 35,721.27 : x
  2. Step 2: Convert to fraction form
    65,935.35/90,990.41 = 35,721.27/x
  3. Step 3: Cross multiply
    65,935.35x = 90,990.41 × 35,721.27
  4. Step 4: Simplify right side
    65,935.35x = 3,250,293,003.02
  5. Step 5: Solve for x
    x = 3,250,293,003.02/65,935.35
  6. Step 6: Final answer
    x = 49,295.15

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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.