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Finding the Fourth Proportional to 62,656.60, 93,982.38 and 20,539.84

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Solution

The fourth proportional to 62,656.60, 93,982.38 and 20,539.84 is: 30,808.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,656.60 : 93,982.38 = 20,539.84 : x
  2. Step 2: Convert to fraction form
    62,656.60/93,982.38 = 20,539.84/x
  3. Step 3: Cross multiply
    62,656.60x = 93,982.38 × 20,539.84
  4. Step 4: Simplify right side
    62,656.60x = 1,930,383,048.02
  5. Step 5: Solve for x
    x = 1,930,383,048.02/62,656.60
  6. Step 6: Final answer
    x = 30,808.93

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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.