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Finding the Fourth Proportional to 27,207.68, 40,806.72 and 7,481.48

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Solution

The fourth proportional to 27,207.68, 40,806.72 and 7,481.48 is: 11,220.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,207.68 : 40,806.72 = 7,481.48 : x
  2. Step 2: Convert to fraction form
    27,207.68/40,806.72 = 7,481.48/x
  3. Step 3: Cross multiply
    27,207.68x = 40,806.72 × 7,481.48
  4. Step 4: Simplify right side
    27,207.68x = 305,294,455.51
  5. Step 5: Solve for x
    x = 305,294,455.51/27,207.68
  6. Step 6: Final answer
    x = 11,220.89

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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.