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Finding the Fourth Proportional to 1,772.14, 2,657.30 and 797.41

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Solution

The fourth proportional to 1,772.14, 2,657.30 and 797.41 is: 1,195.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772.14 : 2,657.30 = 797.41 : x
  2. Step 2: Convert to fraction form
    1,772.14/2,657.30 = 797.41/x
  3. Step 3: Cross multiply
    1,772.14x = 2,657.30 × 797.41
  4. Step 4: Simplify right side
    1,772.14x = 2,118,957.59
  5. Step 5: Solve for x
    x = 2,118,957.59/1,772.14
  6. Step 6: Final answer
    x = 1,195.71

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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.