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Finding the Fourth Proportional to 22,017.80, 32,961.90 and 19,425.80

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Solution

The fourth proportional to 22,017.80, 32,961.90 and 19,425.80 is: 29,081.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,017.80 : 32,961.90 = 19,425.80 : x
  2. Step 2: Convert to fraction form
    22,017.80/32,961.90 = 19,425.80/x
  3. Step 3: Cross multiply
    22,017.80x = 32,961.90 × 19,425.80
  4. Step 4: Simplify right side
    22,017.80x = 640,311,277.02
  5. Step 5: Solve for x
    x = 640,311,277.02/22,017.80
  6. Step 6: Final answer
    x = 29,081.53

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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.