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Finding the Fourth Proportional to 4,985.73, 7,474.32 and 2,210.88

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Solution

The fourth proportional to 4,985.73, 7,474.32 and 2,210.88 is: 3,314.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.73 : 7,474.32 = 2,210.88 : x
  2. Step 2: Convert to fraction form
    4,985.73/7,474.32 = 2,210.88/x
  3. Step 3: Cross multiply
    4,985.73x = 7,474.32 × 2,210.88
  4. Step 4: Simplify right side
    4,985.73x = 16,524,824.60
  5. Step 5: Solve for x
    x = 16,524,824.60/4,985.73
  6. Step 6: Final answer
    x = 3,314.42

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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.