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Finding the Fourth Proportional to 13,003.20, 17,944.42 and 7,034.87

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Solution

The fourth proportional to 13,003.20, 17,944.42 and 7,034.87 is: 9,708.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,003.20 : 17,944.42 = 7,034.87 : x
  2. Step 2: Convert to fraction form
    13,003.20/17,944.42 = 7,034.87/x
  3. Step 3: Cross multiply
    13,003.20x = 17,944.42 × 7,034.87
  4. Step 4: Simplify right side
    13,003.20x = 126,236,554.62
  5. Step 5: Solve for x
    x = 126,236,554.62/13,003.20
  6. Step 6: Final answer
    x = 9,708.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.