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Finding the Fourth Proportional to 65,648.58, 98,452.22 and 21,265.04

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Solution

The fourth proportional to 65,648.58, 98,452.22 and 21,265.04 is: 31,890.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,648.58 : 98,452.22 = 21,265.04 : x
  2. Step 2: Convert to fraction form
    65,648.58/98,452.22 = 21,265.04/x
  3. Step 3: Cross multiply
    65,648.58x = 98,452.22 × 21,265.04
  4. Step 4: Simplify right side
    65,648.58x = 2,093,589,797.80
  5. Step 5: Solve for x
    x = 2,093,589,797.80/65,648.58
  6. Step 6: Final answer
    x = 31,890.86

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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.