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Finding the Fourth Proportional to 22,164.40, 33,239.40 and 7,370.80

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Solution

The fourth proportional to 22,164.40, 33,239.40 and 7,370.80 is: 11,053.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,164.40 : 33,239.40 = 7,370.80 : x
  2. Step 2: Convert to fraction form
    22,164.40/33,239.40 = 7,370.80/x
  3. Step 3: Cross multiply
    22,164.40x = 33,239.40 × 7,370.80
  4. Step 4: Simplify right side
    22,164.40x = 245,000,969.52
  5. Step 5: Solve for x
    x = 245,000,969.52/22,164.40
  6. Step 6: Final answer
    x = 11,053.81

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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.