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Finding the Fourth Proportional to 22,119.28, 33,188.64 and 7,330.32

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Solution

The fourth proportional to 22,119.28, 33,188.64 and 7,330.32 is: 10,998.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,119.28 : 33,188.64 = 7,330.32 : x
  2. Step 2: Convert to fraction form
    22,119.28/33,188.64 = 7,330.32/x
  3. Step 3: Cross multiply
    22,119.28x = 33,188.64 × 7,330.32
  4. Step 4: Simplify right side
    22,119.28x = 243,283,351.56
  5. Step 5: Solve for x
    x = 243,283,351.56/22,119.28
  6. Step 6: Final answer
    x = 10,998.70

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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.