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Finding the Fourth Proportional to 22,520.19, 33,782.01 and 7,728.99

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Solution

The fourth proportional to 22,520.19, 33,782.01 and 7,728.99 is: 11,594.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,520.19 : 33,782.01 = 7,728.99 : x
  2. Step 2: Convert to fraction form
    22,520.19/33,782.01 = 7,728.99/x
  3. Step 3: Cross multiply
    22,520.19x = 33,782.01 × 7,728.99
  4. Step 4: Simplify right side
    22,520.19x = 261,100,817.47
  5. Step 5: Solve for x
    x = 261,100,817.47/22,520.19
  6. Step 6: Final answer
    x = 11,594.08

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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.