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Finding the Fourth Proportional to 22,012.26, 33,018.22 and 7,221.03

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Solution

The fourth proportional to 22,012.26, 33,018.22 and 7,221.03 is: 10,831.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,012.26 : 33,018.22 = 7,221.03 : x
  2. Step 2: Convert to fraction form
    22,012.26/33,018.22 = 7,221.03/x
  3. Step 3: Cross multiply
    22,012.26x = 33,018.22 × 7,221.03
  4. Step 4: Simplify right side
    22,012.26x = 238,425,557.17
  5. Step 5: Solve for x
    x = 238,425,557.17/22,012.26
  6. Step 6: Final answer
    x = 10,831.49

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Double scale
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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.