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Finding the Fourth Proportional to 59,961.60, 82,684.80 and 38,707.20

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Solution

The fourth proportional to 59,961.60, 82,684.80 and 38,707.20 is: 53,375.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,961.60 : 82,684.80 = 38,707.20 : x
  2. Step 2: Convert to fraction form
    59,961.60/82,684.80 = 38,707.20/x
  3. Step 3: Cross multiply
    59,961.60x = 82,684.80 × 38,707.20
  4. Step 4: Simplify right side
    59,961.60x = 3,200,497,090.56
  5. Step 5: Solve for x
    x = 3,200,497,090.56/59,961.60
  6. Step 6: Final answer
    x = 53,375.78

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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.