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Finding the Fourth Proportional to 8,443.57, 12,651.52 and 2,893.92

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Solution

The fourth proportional to 8,443.57, 12,651.52 and 2,893.92 is: 4,336.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,443.57 : 12,651.52 = 2,893.92 : x
  2. Step 2: Convert to fraction form
    8,443.57/12,651.52 = 2,893.92/x
  3. Step 3: Cross multiply
    8,443.57x = 12,651.52 × 2,893.92
  4. Step 4: Simplify right side
    8,443.57x = 36,612,486.76
  5. Step 5: Solve for x
    x = 36,612,486.76/8,443.57
  6. Step 6: Final answer
    x = 4,336.14

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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.