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Finding the Fourth Proportional to 8,394.68, 12,591.22 and 2,551.34

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Solution

The fourth proportional to 8,394.68, 12,591.22 and 2,551.34 is: 3,826.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,394.68 : 12,591.22 = 2,551.34 : x
  2. Step 2: Convert to fraction form
    8,394.68/12,591.22 = 2,551.34/x
  3. Step 3: Cross multiply
    8,394.68x = 12,591.22 × 2,551.34
  4. Step 4: Simplify right side
    8,394.68x = 32,124,483.23
  5. Step 5: Solve for x
    x = 32,124,483.23/8,394.68
  6. Step 6: Final answer
    x = 3,826.77

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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.