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Finding the Fourth Proportional to 12,451.52, 18,674.52 and 7,522.64

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Solution

The fourth proportional to 12,451.52, 18,674.52 and 7,522.64 is: 11,282.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,451.52 : 18,674.52 = 7,522.64 : x
  2. Step 2: Convert to fraction form
    12,451.52/18,674.52 = 7,522.64/x
  3. Step 3: Cross multiply
    12,451.52x = 18,674.52 × 7,522.64
  4. Step 4: Simplify right side
    12,451.52x = 140,481,691.13
  5. Step 5: Solve for x
    x = 140,481,691.13/12,451.52
  6. Step 6: Final answer
    x = 11,282.29

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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.