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Finding the Fourth Proportional to 43,648.88, 65,481.21 and 28,870.02

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Solution

The fourth proportional to 43,648.88, 65,481.21 and 28,870.02 is: 43,310.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,648.88 : 65,481.21 = 28,870.02 : x
  2. Step 2: Convert to fraction form
    43,648.88/65,481.21 = 28,870.02/x
  3. Step 3: Cross multiply
    43,648.88x = 65,481.21 × 28,870.02
  4. Step 4: Simplify right side
    43,648.88x = 1,890,443,842.32
  5. Step 5: Solve for x
    x = 1,890,443,842.32/43,648.88
  6. Step 6: Final answer
    x = 43,310.25

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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.