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Finding the Fourth Proportional to 17,653.88, 26,474.14 and 7,120.32

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Solution

The fourth proportional to 17,653.88, 26,474.14 and 7,120.32 is: 10,677.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,653.88 : 26,474.14 = 7,120.32 : x
  2. Step 2: Convert to fraction form
    17,653.88/26,474.14 = 7,120.32/x
  3. Step 3: Cross multiply
    17,653.88x = 26,474.14 × 7,120.32
  4. Step 4: Simplify right side
    17,653.88x = 188,504,348.52
  5. Step 5: Solve for x
    x = 188,504,348.52/17,653.88
  6. Step 6: Final answer
    x = 10,677.79

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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.