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Finding the Fourth Proportional to 22,539, 33,789.93 and 13,155.90

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Solution

The fourth proportional to 22,539, 33,789.93 and 13,155.90 is: 19,723.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,539 : 33,789.93 = 13,155.90 : x
  2. Step 2: Convert to fraction form
    22,539/33,789.93 = 13,155.90/x
  3. Step 3: Cross multiply
    22,539x = 33,789.93 × 13,155.90
  4. Step 4: Simplify right side
    22,539x = 444,536,940.09
  5. Step 5: Solve for x
    x = 444,536,940.09/22,539
  6. Step 6: Final answer
    x = 19,723.01

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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.