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Finding the Fourth Proportional to 65,739.66, 90,720.68 and 35,524.97

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Solution

The fourth proportional to 65,739.66, 90,720.68 and 35,524.97 is: 49,024.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,739.66 : 90,720.68 = 35,524.97 : x
  2. Step 2: Convert to fraction form
    65,739.66/90,720.68 = 35,524.97/x
  3. Step 3: Cross multiply
    65,739.66x = 90,720.68 × 35,524.97
  4. Step 4: Simplify right side
    65,739.66x = 3,222,849,435.38
  5. Step 5: Solve for x
    x = 3,222,849,435.38/65,739.66
  6. Step 6: Final answer
    x = 49,024.43

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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.