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Finding the Fourth Proportional to 69,309.92, 95,647.79 and 37,478.82

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Solution

The fourth proportional to 69,309.92, 95,647.79 and 37,478.82 is: 51,720.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,309.92 : 95,647.79 = 37,478.82 : x
  2. Step 2: Convert to fraction form
    69,309.92/95,647.79 = 37,478.82/x
  3. Step 3: Cross multiply
    69,309.92x = 95,647.79 × 37,478.82
  4. Step 4: Simplify right side
    69,309.92x = 3,584,765,639.17
  5. Step 5: Solve for x
    x = 3,584,765,639.17/69,309.92
  6. Step 6: Final answer
    x = 51,720.82

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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.