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Finding the Fourth Proportional to 49,515, 68,331.06 and 27,159

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Solution

The fourth proportional to 49,515, 68,331.06 and 27,159 is: 37,479.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,515 : 68,331.06 = 27,159 : x
  2. Step 2: Convert to fraction form
    49,515/68,331.06 = 27,159/x
  3. Step 3: Cross multiply
    49,515x = 68,331.06 × 27,159
  4. Step 4: Simplify right side
    49,515x = 1,855,803,258.54
  5. Step 5: Solve for x
    x = 1,855,803,258.54/49,515
  6. Step 6: Final answer
    x = 37,479.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.