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Finding the Fourth Proportional to 2,674.60, 4,012.07 and 1,031.16

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Solution

The fourth proportional to 2,674.60, 4,012.07 and 1,031.16 is: 1,546.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,674.60 : 4,012.07 = 1,031.16 : x
  2. Step 2: Convert to fraction form
    2,674.60/4,012.07 = 1,031.16/x
  3. Step 3: Cross multiply
    2,674.60x = 4,012.07 × 1,031.16
  4. Step 4: Simplify right side
    2,674.60x = 4,137,086.10
  5. Step 5: Solve for x
    x = 4,137,086.10/2,674.60
  6. Step 6: Final answer
    x = 1,546.81

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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.