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Finding the Fourth Proportional to 69,353.88, 95,684.58 and 39,135.48

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Solution

The fourth proportional to 69,353.88, 95,684.58 and 39,135.48 is: 53,993.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,353.88 : 95,684.58 = 39,135.48 : x
  2. Step 2: Convert to fraction form
    69,353.88/95,684.58 = 39,135.48/x
  3. Step 3: Cross multiply
    69,353.88x = 95,684.58 × 39,135.48
  4. Step 4: Simplify right side
    69,353.88x = 3,744,661,966.90
  5. Step 5: Solve for x
    x = 3,744,661,966.90/69,353.88
  6. Step 6: Final answer
    x = 53,993.55

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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.