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Finding the Fourth Proportional to 47,656.80, 71,460.79 and 25,179.55

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Solution

The fourth proportional to 47,656.80, 71,460.79 and 25,179.55 is: 37,756.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,656.80 : 71,460.79 = 25,179.55 : x
  2. Step 2: Convert to fraction form
    47,656.80/71,460.79 = 25,179.55/x
  3. Step 3: Cross multiply
    47,656.80x = 71,460.79 × 25,179.55
  4. Step 4: Simplify right side
    47,656.80x = 1,799,350,177.54
  5. Step 5: Solve for x
    x = 1,799,350,177.54/47,656.80
  6. Step 6: Final answer
    x = 37,756.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.