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Finding the Fourth Proportional to 27,665.64, 41,497.92 and 7,943.76

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Solution

The fourth proportional to 27,665.64, 41,497.92 and 7,943.76 is: 11,915.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,665.64 : 41,497.92 = 7,943.76 : x
  2. Step 2: Convert to fraction form
    27,665.64/41,497.92 = 7,943.76/x
  3. Step 3: Cross multiply
    27,665.64x = 41,497.92 × 7,943.76
  4. Step 4: Simplify right side
    27,665.64x = 329,649,516.98
  5. Step 5: Solve for x
    x = 329,649,516.98/27,665.64
  6. Step 6: Final answer
    x = 11,915.48

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1.5x scale

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.