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Finding the Fourth Proportional to 12,524.54, 18,756.99 and 7,248.43

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Solution

The fourth proportional to 12,524.54, 18,756.99 and 7,248.43 is: 10,855.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,524.54 : 18,756.99 = 7,248.43 : x
  2. Step 2: Convert to fraction form
    12,524.54/18,756.99 = 7,248.43/x
  3. Step 3: Cross multiply
    12,524.54x = 18,756.99 × 7,248.43
  4. Step 4: Simplify right side
    12,524.54x = 135,958,752.47
  5. Step 5: Solve for x
    x = 135,958,752.47/12,524.54
  6. Step 6: Final answer
    x = 10,855.39

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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.