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Finding the Fourth Proportional to 22,643.35, 33,989.62 and 19,149.62

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Solution

The fourth proportional to 22,643.35, 33,989.62 and 19,149.62 is: 28,745.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,643.35 : 33,989.62 = 19,149.62 : x
  2. Step 2: Convert to fraction form
    22,643.35/33,989.62 = 19,149.62/x
  3. Step 3: Cross multiply
    22,643.35x = 33,989.62 × 19,149.62
  4. Step 4: Simplify right side
    22,643.35x = 650,888,306.94
  5. Step 5: Solve for x
    x = 650,888,306.94/22,643.35
  6. Step 6: Final answer
    x = 28,745.23

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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.