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Finding the Fourth Proportional to 65,882.45, 90,880.74 and 41,675.91

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Solution

The fourth proportional to 65,882.45, 90,880.74 and 41,675.91 is: 57,489.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,882.45 : 90,880.74 = 41,675.91 : x
  2. Step 2: Convert to fraction form
    65,882.45/90,880.74 = 41,675.91/x
  3. Step 3: Cross multiply
    65,882.45x = 90,880.74 × 41,675.91
  4. Step 4: Simplify right side
    65,882.45x = 3,787,537,540.97
  5. Step 5: Solve for x
    x = 3,787,537,540.97/65,882.45
  6. Step 6: Final answer
    x = 57,489.33

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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.