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Finding the Fourth Proportional to 8,892.12, 13,339.62 and 2,736.12

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Solution

The fourth proportional to 8,892.12, 13,339.62 and 2,736.12 is: 4,104.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,892.12 : 13,339.62 = 2,736.12 : x
  2. Step 2: Convert to fraction form
    8,892.12/13,339.62 = 2,736.12/x
  3. Step 3: Cross multiply
    8,892.12x = 13,339.62 × 2,736.12
  4. Step 4: Simplify right side
    8,892.12x = 36,498,801.07
  5. Step 5: Solve for x
    x = 36,498,801.07/8,892.12
  6. Step 6: Final answer
    x = 4,104.62

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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.