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Finding the Fourth Proportional to 17,003.22, 25,500.78 and 7,142.69

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Solution

The fourth proportional to 17,003.22, 25,500.78 and 7,142.69 is: 10,712.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,003.22 : 25,500.78 = 7,142.69 : x
  2. Step 2: Convert to fraction form
    17,003.22/25,500.78 = 7,142.69/x
  3. Step 3: Cross multiply
    17,003.22x = 25,500.78 × 7,142.69
  4. Step 4: Simplify right side
    17,003.22x = 182,144,166.30
  5. Step 5: Solve for x
    x = 182,144,166.30/17,003.22
  6. Step 6: Final answer
    x = 10,712.33

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1.5x scale

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.