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Finding the Fourth Proportional to 3,573.90, 4,928.31 and 3,493.44

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Solution

The fourth proportional to 3,573.90, 4,928.31 and 3,493.44 is: 4,817.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,573.90 : 4,928.31 = 3,493.44 : x
  2. Step 2: Convert to fraction form
    3,573.90/4,928.31 = 3,493.44/x
  3. Step 3: Cross multiply
    3,573.90x = 4,928.31 × 3,493.44
  4. Step 4: Simplify right side
    3,573.90x = 17,216,755.29
  5. Step 5: Solve for x
    x = 17,216,755.29/3,573.90
  6. Step 6: Final answer
    x = 4,817.36

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1.5x scale

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.