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Finding the Fourth Proportional to 4,985.54, 7,481.78 and 2,063.86

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Solution

The fourth proportional to 4,985.54, 7,481.78 and 2,063.86 is: 3,097.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.54 : 7,481.78 = 2,063.86 : x
  2. Step 2: Convert to fraction form
    4,985.54/7,481.78 = 2,063.86/x
  3. Step 3: Cross multiply
    4,985.54x = 7,481.78 × 2,063.86
  4. Step 4: Simplify right side
    4,985.54x = 15,441,346.47
  5. Step 5: Solve for x
    x = 15,441,346.47/4,985.54
  6. Step 6: Final answer
    x = 3,097.23

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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.