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Finding the Fourth Proportional to 22,010.56, 33,016.16 and 7,220.64

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Solution

The fourth proportional to 22,010.56, 33,016.16 and 7,220.64 is: 10,831.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,010.56 : 33,016.16 = 7,220.64 : x
  2. Step 2: Convert to fraction form
    22,010.56/33,016.16 = 7,220.64/x
  3. Step 3: Cross multiply
    22,010.56x = 33,016.16 × 7,220.64
  4. Step 4: Simplify right side
    22,010.56x = 238,397,805.54
  5. Step 5: Solve for x
    x = 238,397,805.54/22,010.56
  6. Step 6: Final answer
    x = 10,831.06

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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.