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Finding the Fourth Proportional to 3,573.28, 4,930.14 and 2,982.88

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Solution

The fourth proportional to 3,573.28, 4,930.14 and 2,982.88 is: 4,115.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,573.28 : 4,930.14 = 2,982.88 : x
  2. Step 2: Convert to fraction form
    3,573.28/4,930.14 = 2,982.88/x
  3. Step 3: Cross multiply
    3,573.28x = 4,930.14 × 2,982.88
  4. Step 4: Simplify right side
    3,573.28x = 14,706,016.00
  5. Step 5: Solve for x
    x = 14,706,016.00/3,573.28
  6. Step 6: Final answer
    x = 4,115.55

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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.