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Finding the Fourth Proportional to 17,076.80, 25,615.17 and 4,764.80

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Solution

The fourth proportional to 17,076.80, 25,615.17 and 4,764.80 is: 7,147.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,076.80 : 25,615.17 = 4,764.80 : x
  2. Step 2: Convert to fraction form
    17,076.80/25,615.17 = 4,764.80/x
  3. Step 3: Cross multiply
    17,076.80x = 25,615.17 × 4,764.80
  4. Step 4: Simplify right side
    17,076.80x = 122,051,162.02
  5. Step 5: Solve for x
    x = 122,051,162.02/17,076.80
  6. Step 6: Final answer
    x = 7,147.19

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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.