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Finding the Fourth Proportional to 2,729.76, 4,093.22 and 974.10

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Solution

The fourth proportional to 2,729.76, 4,093.22 and 974.10 is: 1,460.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,729.76 : 4,093.22 = 974.10 : x
  2. Step 2: Convert to fraction form
    2,729.76/4,093.22 = 974.10/x
  3. Step 3: Cross multiply
    2,729.76x = 4,093.22 × 974.10
  4. Step 4: Simplify right side
    2,729.76x = 3,987,205.60
  5. Step 5: Solve for x
    x = 3,987,205.60/2,729.76
  6. Step 6: Final answer
    x = 1,460.64

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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.