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Finding the Fourth Proportional to 22,698.69, 34,103.64 and 21,439.80

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Solution

The fourth proportional to 22,698.69, 34,103.64 and 21,439.80 is: 32,212.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,698.69 : 34,103.64 = 21,439.80 : x
  2. Step 2: Convert to fraction form
    22,698.69/34,103.64 = 21,439.80/x
  3. Step 3: Cross multiply
    22,698.69x = 34,103.64 × 21,439.80
  4. Step 4: Simplify right side
    22,698.69x = 731,175,220.87
  5. Step 5: Solve for x
    x = 731,175,220.87/22,698.69
  6. Step 6: Final answer
    x = 32,212.22

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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.