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Finding the Fourth Proportional to 69,686.29, 96,168 and 37,855.72

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Solution

The fourth proportional to 69,686.29, 96,168 and 37,855.72 is: 52,241.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,686.29 : 96,168 = 37,855.72 : x
  2. Step 2: Convert to fraction form
    69,686.29/96,168 = 37,855.72/x
  3. Step 3: Cross multiply
    69,686.29x = 96,168 × 37,855.72
  4. Step 4: Simplify right side
    69,686.29x = 3,640,508,880.96
  5. Step 5: Solve for x
    x = 3,640,508,880.96/69,686.29
  6. Step 6: Final answer
    x = 52,241.39

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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.