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Finding the Fourth Proportional to 27,960.84, 41,811.66 and 21,649.32

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Solution

The fourth proportional to 27,960.84, 41,811.66 and 21,649.32 is: 32,373.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,960.84 : 41,811.66 = 21,649.32 : x
  2. Step 2: Convert to fraction form
    27,960.84/41,811.66 = 21,649.32/x
  3. Step 3: Cross multiply
    27,960.84x = 41,811.66 × 21,649.32
  4. Step 4: Simplify right side
    27,960.84x = 905,194,007.07
  5. Step 5: Solve for x
    x = 905,194,007.07/27,960.84
  6. Step 6: Final answer
    x = 32,373.63

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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.