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Finding the Fourth Proportional to 21,891.80, 32,831.19 and 6,093.15

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Solution

The fourth proportional to 21,891.80, 32,831.19 and 6,093.15 is: 9,137.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,891.80 : 32,831.19 = 6,093.15 : x
  2. Step 2: Convert to fraction form
    21,891.80/32,831.19 = 6,093.15/x
  3. Step 3: Cross multiply
    21,891.80x = 32,831.19 × 6,093.15
  4. Step 4: Simplify right side
    21,891.80x = 200,045,365.35
  5. Step 5: Solve for x
    x = 200,045,365.35/21,891.80
  6. Step 6: Final answer
    x = 9,137.92

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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.