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Finding the Fourth Proportional to 3,458.52, 4,772.79 and 1,966.41

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Solution

The fourth proportional to 3,458.52, 4,772.79 and 1,966.41 is: 2,713.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.52 : 4,772.79 = 1,966.41 : x
  2. Step 2: Convert to fraction form
    3,458.52/4,772.79 = 1,966.41/x
  3. Step 3: Cross multiply
    3,458.52x = 4,772.79 × 1,966.41
  4. Step 4: Simplify right side
    3,458.52x = 9,385,261.98
  5. Step 5: Solve for x
    x = 9,385,261.98/3,458.52
  6. Step 6: Final answer
    x = 2,713.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.