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Finding the Fourth Proportional to 22,065.70, 33,098.54 and 8,918.07

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Solution

The fourth proportional to 22,065.70, 33,098.54 and 8,918.07 is: 13,377.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,065.70 : 33,098.54 = 8,918.07 : x
  2. Step 2: Convert to fraction form
    22,065.70/33,098.54 = 8,918.07/x
  3. Step 3: Cross multiply
    22,065.70x = 33,098.54 × 8,918.07
  4. Step 4: Simplify right side
    22,065.70x = 295,175,096.62
  5. Step 5: Solve for x
    x = 295,175,096.62/22,065.70
  6. Step 6: Final answer
    x = 13,377.10

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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.