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Finding the Fourth Proportional to 27,606.36, 41,369.40 and 20,914.20

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Solution

The fourth proportional to 27,606.36, 41,369.40 and 20,914.20 is: 31,340.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,606.36 : 41,369.40 = 20,914.20 : x
  2. Step 2: Convert to fraction form
    27,606.36/41,369.40 = 20,914.20/x
  3. Step 3: Cross multiply
    27,606.36x = 41,369.40 × 20,914.20
  4. Step 4: Simplify right side
    27,606.36x = 865,207,905.48
  5. Step 5: Solve for x
    x = 865,207,905.48/27,606.36
  6. Step 6: Final answer
    x = 31,340.89

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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.