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Finding the Fourth Proportional to 22,191.88, 33,280.50 and 7,396.72

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Solution

The fourth proportional to 22,191.88, 33,280.50 and 7,396.72 is: 11,092.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,191.88 : 33,280.50 = 7,396.72 : x
  2. Step 2: Convert to fraction form
    22,191.88/33,280.50 = 7,396.72/x
  3. Step 3: Cross multiply
    22,191.88x = 33,280.50 × 7,396.72
  4. Step 4: Simplify right side
    22,191.88x = 246,166,539.96
  5. Step 5: Solve for x
    x = 246,166,539.96/22,191.88
  6. Step 6: Final answer
    x = 11,092.64

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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.