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Finding the Fourth Proportional to 69,108, 95,373.81 and 38,896.17

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Solution

The fourth proportional to 69,108, 95,373.81 and 38,896.17 is: 53,679.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,108 : 95,373.81 = 38,896.17 : x
  2. Step 2: Convert to fraction form
    69,108/95,373.81 = 38,896.17/x
  3. Step 3: Cross multiply
    69,108x = 95,373.81 × 38,896.17
  4. Step 4: Simplify right side
    69,108x = 3,709,675,927.31
  5. Step 5: Solve for x
    x = 3,709,675,927.31/69,108
  6. Step 6: Final answer
    x = 53,679.40

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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.