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Finding the Fourth Proportional to 17,604.90, 26,415.81 and 10,939.59

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Solution

The fourth proportional to 17,604.90, 26,415.81 and 10,939.59 is: 16,414.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,604.90 : 26,415.81 = 10,939.59 : x
  2. Step 2: Convert to fraction form
    17,604.90/26,415.81 = 10,939.59/x
  3. Step 3: Cross multiply
    17,604.90x = 26,415.81 × 10,939.59
  4. Step 4: Simplify right side
    17,604.90x = 288,978,130.92
  5. Step 5: Solve for x
    x = 288,978,130.92/17,604.90
  6. Step 6: Final answer
    x = 16,414.64

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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.