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Finding the Fourth Proportional to 7,321.58, 10,982.28 and 1,774.97

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Solution

The fourth proportional to 7,321.58, 10,982.28 and 1,774.97 is: 2,662.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.58 : 10,982.28 = 1,774.97 : x
  2. Step 2: Convert to fraction form
    7,321.58/10,982.28 = 1,774.97/x
  3. Step 3: Cross multiply
    7,321.58x = 10,982.28 × 1,774.97
  4. Step 4: Simplify right side
    7,321.58x = 19,493,208.66
  5. Step 5: Solve for x
    x = 19,493,208.66/7,321.58
  6. Step 6: Final answer
    x = 2,662.43

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1.5x scale

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.