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Finding the Fourth Proportional to 2,314.66, 3,472.56 and 671.32

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Solution

The fourth proportional to 2,314.66, 3,472.56 and 671.32 is: 1,007.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,314.66 : 3,472.56 = 671.32 : x
  2. Step 2: Convert to fraction form
    2,314.66/3,472.56 = 671.32/x
  3. Step 3: Cross multiply
    2,314.66x = 3,472.56 × 671.32
  4. Step 4: Simplify right side
    2,314.66x = 2,331,198.98
  5. Step 5: Solve for x
    x = 2,331,198.98/2,314.66
  6. Step 6: Final answer
    x = 1,007.15

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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.