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Finding the Fourth Proportional to 22,797.80, 34,196.70 and 18,909.80

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Solution

The fourth proportional to 22,797.80, 34,196.70 and 18,909.80 is: 28,364.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,797.80 : 34,196.70 = 18,909.80 : x
  2. Step 2: Convert to fraction form
    22,797.80/34,196.70 = 18,909.80/x
  3. Step 3: Cross multiply
    22,797.80x = 34,196.70 × 18,909.80
  4. Step 4: Simplify right side
    22,797.80x = 646,652,757.66
  5. Step 5: Solve for x
    x = 646,652,757.66/22,797.80
  6. Step 6: Final answer
    x = 28,364.70

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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.