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Finding the Fourth Proportional to 65,939.93, 90,996.98 and 35,726.00

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Solution

The fourth proportional to 65,939.93, 90,996.98 and 35,726.00 is: 49,301.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,939.93 : 90,996.98 = 35,726.00 : x
  2. Step 2: Convert to fraction form
    65,939.93/90,996.98 = 35,726.00/x
  3. Step 3: Cross multiply
    65,939.93x = 90,996.98 × 35,726.00
  4. Step 4: Simplify right side
    65,939.93x = 3,250,957,815.10
  5. Step 5: Solve for x
    x = 3,250,957,815.10/65,939.93
  6. Step 6: Final answer
    x = 49,301.81

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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.