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Finding the Fourth Proportional to 3,573.82, 4,932.05 and 2,157.48

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Solution

The fourth proportional to 3,573.82, 4,932.05 and 2,157.48 is: 2,977.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,573.82 : 4,932.05 = 2,157.48 : x
  2. Step 2: Convert to fraction form
    3,573.82/4,932.05 = 2,157.48/x
  3. Step 3: Cross multiply
    3,573.82x = 4,932.05 × 2,157.48
  4. Step 4: Simplify right side
    3,573.82x = 10,640,788.45
  5. Step 5: Solve for x
    x = 10,640,788.45/3,573.82
  6. Step 6: Final answer
    x = 2,977.43

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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.