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Finding the Fourth Proportional to 27,406.39, 41,053.90 and 21,869.11

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Solution

The fourth proportional to 27,406.39, 41,053.90 and 21,869.11 is: 32,759.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,406.39 : 41,053.90 = 21,869.11 : x
  2. Step 2: Convert to fraction form
    27,406.39/41,053.90 = 21,869.11/x
  3. Step 3: Cross multiply
    27,406.39x = 41,053.90 × 21,869.11
  4. Step 4: Simplify right side
    27,406.39x = 897,812,255.03
  5. Step 5: Solve for x
    x = 897,812,255.03/27,406.39
  6. Step 6: Final answer
    x = 32,759.23

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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.