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Finding the Fourth Proportional to 8,636.30, 12,954.45 and 2,396.32

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Solution

The fourth proportional to 8,636.30, 12,954.45 and 2,396.32 is: 3,594.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,636.30 : 12,954.45 = 2,396.32 : x
  2. Step 2: Convert to fraction form
    8,636.30/12,954.45 = 2,396.32/x
  3. Step 3: Cross multiply
    8,636.30x = 12,954.45 × 2,396.32
  4. Step 4: Simplify right side
    8,636.30x = 31,042,984.22
  5. Step 5: Solve for x
    x = 31,042,984.22/8,636.30
  6. Step 6: Final answer
    x = 3,594.48

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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.