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Finding the Fourth Proportional to 17,872.39, 26,807.41 and 7,339.68

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Solution

The fourth proportional to 17,872.39, 26,807.41 and 7,339.68 is: 11,009.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,872.39 : 26,807.41 = 7,339.68 : x
  2. Step 2: Convert to fraction form
    17,872.39/26,807.41 = 7,339.68/x
  3. Step 3: Cross multiply
    17,872.39x = 26,807.41 × 7,339.68
  4. Step 4: Simplify right side
    17,872.39x = 196,757,811.03
  5. Step 5: Solve for x
    x = 196,757,811.03/17,872.39
  6. Step 6: Final answer
    x = 11,009.04

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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.