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Finding the Fourth Proportional to 22,068.69, 33,103.04 and 6,486.31

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Solution

The fourth proportional to 22,068.69, 33,103.04 and 6,486.31 is: 9,729.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,068.69 : 33,103.04 = 6,486.31 : x
  2. Step 2: Convert to fraction form
    22,068.69/33,103.04 = 6,486.31/x
  3. Step 3: Cross multiply
    22,068.69x = 33,103.04 × 6,486.31
  4. Step 4: Simplify right side
    22,068.69x = 214,716,579.38
  5. Step 5: Solve for x
    x = 214,716,579.38/22,068.69
  6. Step 6: Final answer
    x = 9,729.47

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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.