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Finding the Fourth Proportional to 2,694.64, 4,041.96 and 746.80

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Solution

The fourth proportional to 2,694.64, 4,041.96 and 746.80 is: 1,120.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,694.64 : 4,041.96 = 746.80 : x
  2. Step 2: Convert to fraction form
    2,694.64/4,041.96 = 746.80/x
  3. Step 3: Cross multiply
    2,694.64x = 4,041.96 × 746.80
  4. Step 4: Simplify right side
    2,694.64x = 3,018,535.73
  5. Step 5: Solve for x
    x = 3,018,535.73/2,694.64
  6. Step 6: Final answer
    x = 1,120.20

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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.