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Finding the Fourth Proportional to 36,322.56, 54,479.70 and 12,625.56

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Solution

The fourth proportional to 36,322.56, 54,479.70 and 12,625.56 is: 18,936.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,322.56 : 54,479.70 = 12,625.56 : x
  2. Step 2: Convert to fraction form
    36,322.56/54,479.70 = 12,625.56/x
  3. Step 3: Cross multiply
    36,322.56x = 54,479.70 × 12,625.56
  4. Step 4: Simplify right side
    36,322.56x = 687,836,721.13
  5. Step 5: Solve for x
    x = 687,836,721.13/36,322.56
  6. Step 6: Final answer
    x = 18,936.90

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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.