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Finding the Fourth Proportional to 8,394.52, 12,591.14 and 2,551.16

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Solution

The fourth proportional to 8,394.52, 12,591.14 and 2,551.16 is: 3,826.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,394.52 : 12,591.14 = 2,551.16 : x
  2. Step 2: Convert to fraction form
    8,394.52/12,591.14 = 2,551.16/x
  3. Step 3: Cross multiply
    8,394.52x = 12,591.14 × 2,551.16
  4. Step 4: Simplify right side
    8,394.52x = 32,122,012.72
  5. Step 5: Solve for x
    x = 32,122,012.72/8,394.52
  6. Step 6: Final answer
    x = 3,826.55

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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.