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Finding the Fourth Proportional to 22,065.20, 33,094.56 and 8,917.28

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Solution

The fourth proportional to 22,065.20, 33,094.56 and 8,917.28 is: 13,374.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,065.20 : 33,094.56 = 8,917.28 : x
  2. Step 2: Convert to fraction form
    22,065.20/33,094.56 = 8,917.28/x
  3. Step 3: Cross multiply
    22,065.20x = 33,094.56 × 8,917.28
  4. Step 4: Simplify right side
    22,065.20x = 295,113,458.00
  5. Step 5: Solve for x
    x = 295,113,458.00/22,065.20
  6. Step 6: Final answer
    x = 13,374.61

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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.