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Finding the Fourth Proportional to 22,065.70, 33,095.31 and 8,917.78

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Solution

The fourth proportional to 22,065.70, 33,095.31 and 8,917.78 is: 13,375.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,065.70 : 33,095.31 = 8,917.78 : x
  2. Step 2: Convert to fraction form
    22,065.70/33,095.31 = 8,917.78/x
  3. Step 3: Cross multiply
    22,065.70x = 33,095.31 × 8,917.78
  4. Step 4: Simplify right side
    22,065.70x = 295,136,693.61
  5. Step 5: Solve for x
    x = 295,136,693.61/22,065.70
  6. Step 6: Final answer
    x = 13,375.36

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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.