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Finding the Fourth Proportional to 65,965.38, 98,960.22 and 21,594.66

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Solution

The fourth proportional to 65,965.38, 98,960.22 and 21,594.66 is: 32,395.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,965.38 : 98,960.22 = 21,594.66 : x
  2. Step 2: Convert to fraction form
    65,965.38/98,960.22 = 21,594.66/x
  3. Step 3: Cross multiply
    65,965.38x = 98,960.22 × 21,594.66
  4. Step 4: Simplify right side
    65,965.38x = 2,137,012,304.43
  5. Step 5: Solve for x
    x = 2,137,012,304.43/65,965.38
  6. Step 6: Final answer
    x = 32,395.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.