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Finding the Fourth Proportional to 22,311.24, 33,468.48 and 7,520.64

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Solution

The fourth proportional to 22,311.24, 33,468.48 and 7,520.64 is: 11,281.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,311.24 : 33,468.48 = 7,520.64 : x
  2. Step 2: Convert to fraction form
    22,311.24/33,468.48 = 7,520.64/x
  3. Step 3: Cross multiply
    22,311.24x = 33,468.48 × 7,520.64
  4. Step 4: Simplify right side
    22,311.24x = 251,704,389.43
  5. Step 5: Solve for x
    x = 251,704,389.43/22,311.24
  6. Step 6: Final answer
    x = 11,281.51

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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.