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Finding the Fourth Proportional to 5,947.20, 8,920.80 and 3,026.88

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Solution

The fourth proportional to 5,947.20, 8,920.80 and 3,026.88 is: 4,540.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,947.20 : 8,920.80 = 3,026.88 : x
  2. Step 2: Convert to fraction form
    5,947.20/8,920.80 = 3,026.88/x
  3. Step 3: Cross multiply
    5,947.20x = 8,920.80 × 3,026.88
  4. Step 4: Simplify right side
    5,947.20x = 27,002,191.10
  5. Step 5: Solve for x
    x = 27,002,191.10/5,947.20
  6. Step 6: Final answer
    x = 4,540.32

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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.