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Finding the Fourth Proportional to 69,785.48, 104,712.89 and 27,664.67

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Solution

The fourth proportional to 69,785.48, 104,712.89 and 27,664.67 is: 41,510.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,785.48 : 104,712.89 = 27,664.67 : x
  2. Step 2: Convert to fraction form
    69,785.48/104,712.89 = 27,664.67/x
  3. Step 3: Cross multiply
    69,785.48x = 104,712.89 × 27,664.67
  4. Step 4: Simplify right side
    69,785.48x = 2,896,847,670.06
  5. Step 5: Solve for x
    x = 2,896,847,670.06/69,785.48
  6. Step 6: Final answer
    x = 41,510.75

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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.