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Finding the Fourth Proportional to 22,011.48, 33,017.22 and 7,220.48

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Solution

The fourth proportional to 22,011.48, 33,017.22 and 7,220.48 is: 10,830.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,011.48 : 33,017.22 = 7,220.48 : x
  2. Step 2: Convert to fraction form
    22,011.48/33,017.22 = 7,220.48/x
  3. Step 3: Cross multiply
    22,011.48x = 33,017.22 × 7,220.48
  4. Step 4: Simplify right side
    22,011.48x = 238,400,011.58
  5. Step 5: Solve for x
    x = 238,400,011.58/22,011.48
  6. Step 6: Final answer
    x = 10,830.71

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Similar ratio
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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.