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Finding the Fourth Proportional to 17,193.76, 25,790.64 and 7,322.56

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Solution

The fourth proportional to 17,193.76, 25,790.64 and 7,322.56 is: 10,983.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,193.76 : 25,790.64 = 7,322.56 : x
  2. Step 2: Convert to fraction form
    17,193.76/25,790.64 = 7,322.56/x
  3. Step 3: Cross multiply
    17,193.76x = 25,790.64 × 7,322.56
  4. Step 4: Simplify right side
    17,193.76x = 188,853,508.84
  5. Step 5: Solve for x
    x = 188,853,508.84/17,193.76
  6. Step 6: Final answer
    x = 10,983.84

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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.