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Finding the Fourth Proportional to 65,848.62, 90,871.11 and 36,040.62

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Solution

The fourth proportional to 65,848.62, 90,871.11 and 36,040.62 is: 49,736.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,848.62 : 90,871.11 = 36,040.62 : x
  2. Step 2: Convert to fraction form
    65,848.62/90,871.11 = 36,040.62/x
  3. Step 3: Cross multiply
    65,848.62x = 90,871.11 × 36,040.62
  4. Step 4: Simplify right side
    65,848.62x = 3,275,051,144.49
  5. Step 5: Solve for x
    x = 3,275,051,144.49/65,848.62
  6. Step 6: Final answer
    x = 49,736.06

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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.