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Finding the Fourth Proportional to 27,606.72, 41,407.20 and 7,884

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Solution

The fourth proportional to 27,606.72, 41,407.20 and 7,884 is: 11,825.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,606.72 : 41,407.20 = 7,884 : x
  2. Step 2: Convert to fraction form
    27,606.72/41,407.20 = 7,884/x
  3. Step 3: Cross multiply
    27,606.72x = 41,407.20 × 7,884
  4. Step 4: Simplify right side
    27,606.72x = 326,454,364.80
  5. Step 5: Solve for x
    x = 326,454,364.80/27,606.72
  6. Step 6: Final answer
    x = 11,825.18

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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.