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Finding the Fourth Proportional to 69,236, 95,545.68 and 39,433.76

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Solution

The fourth proportional to 69,236, 95,545.68 and 39,433.76 is: 54,418.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,236 : 95,545.68 = 39,433.76 : x
  2. Step 2: Convert to fraction form
    69,236/95,545.68 = 39,433.76/x
  3. Step 3: Cross multiply
    69,236x = 95,545.68 × 39,433.76
  4. Step 4: Simplify right side
    69,236x = 3,767,725,414.16
  5. Step 5: Solve for x
    x = 3,767,725,414.16/69,236
  6. Step 6: Final answer
    x = 54,418.59

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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.