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Finding the Fourth Proportional to 17,891.64, 26,831.39 and 6,795.65

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Solution

The fourth proportional to 17,891.64, 26,831.39 and 6,795.65 is: 10,191.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,891.64 : 26,831.39 = 6,795.65 : x
  2. Step 2: Convert to fraction form
    17,891.64/26,831.39 = 6,795.65/x
  3. Step 3: Cross multiply
    17,891.64x = 26,831.39 × 6,795.65
  4. Step 4: Simplify right side
    17,891.64x = 182,336,768.55
  5. Step 5: Solve for x
    x = 182,336,768.55/17,891.64
  6. Step 6: Final answer
    x = 10,191.17

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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.