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Finding the Fourth Proportional to 64,645.76, 96,760.88 and 34,584.99

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Solution

The fourth proportional to 64,645.76, 96,760.88 and 34,584.99 is: 51,766.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,645.76 : 96,760.88 = 34,584.99 : x
  2. Step 2: Convert to fraction form
    64,645.76/96,760.88 = 34,584.99/x
  3. Step 3: Cross multiply
    64,645.76x = 96,760.88 × 34,584.99
  4. Step 4: Simplify right side
    64,645.76x = 3,346,474,205.39
  5. Step 5: Solve for x
    x = 3,346,474,205.39/64,645.76
  6. Step 6: Final answer
    x = 51,766.34

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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.