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Finding the Fourth Proportional to 65,493.96, 98,270.46 and 28,063.86

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Solution

The fourth proportional to 65,493.96, 98,270.46 and 28,063.86 is: 42,108.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,493.96 : 98,270.46 = 28,063.86 : x
  2. Step 2: Convert to fraction form
    65,493.96/98,270.46 = 28,063.86/x
  3. Step 3: Cross multiply
    65,493.96x = 98,270.46 × 28,063.86
  4. Step 4: Simplify right side
    65,493.96x = 2,757,848,431.58
  5. Step 5: Solve for x
    x = 2,757,848,431.58/65,493.96
  6. Step 6: Final answer
    x = 42,108.44

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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.