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Finding the Fourth Proportional to 65,739.82, 90,698.79 and 37,425.46

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Solution

The fourth proportional to 65,739.82, 90,698.79 and 37,425.46 is: 51,634.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,739.82 : 90,698.79 = 37,425.46 : x
  2. Step 2: Convert to fraction form
    65,739.82/90,698.79 = 37,425.46/x
  3. Step 3: Cross multiply
    65,739.82x = 90,698.79 × 37,425.46
  4. Step 4: Simplify right side
    65,739.82x = 3,394,443,937.19
  5. Step 5: Solve for x
    x = 3,394,443,937.19/65,739.82
  6. Step 6: Final answer
    x = 51,634.52

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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.