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Finding the Fourth Proportional to 65,848.96, 90,871.68 and 36,040.96

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Solution

The fourth proportional to 65,848.96, 90,871.68 and 36,040.96 is: 49,736.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,848.96 : 90,871.68 = 36,040.96 : x
  2. Step 2: Convert to fraction form
    65,848.96/90,871.68 = 36,040.96/x
  3. Step 3: Cross multiply
    65,848.96x = 90,871.68 × 36,040.96
  4. Step 4: Simplify right side
    65,848.96x = 3,275,102,584.01
  5. Step 5: Solve for x
    x = 3,275,102,584.01/65,848.96
  6. Step 6: Final answer
    x = 49,736.59

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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.