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Finding the Fourth Proportional to 64,354.88, 96,517.54 and 17,611.40

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Solution

The fourth proportional to 64,354.88, 96,517.54 and 17,611.40 is: 26,413.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,354.88 : 96,517.54 = 17,611.40 : x
  2. Step 2: Convert to fraction form
    64,354.88/96,517.54 = 17,611.40/x
  3. Step 3: Cross multiply
    64,354.88x = 96,517.54 × 17,611.40
  4. Step 4: Simplify right side
    64,354.88x = 1,699,809,003.96
  5. Step 5: Solve for x
    x = 1,699,809,003.96/64,354.88
  6. Step 6: Final answer
    x = 26,413.06

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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.