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Finding the Fourth Proportional to 27,705.92, 41,558.88 and 6,929.42

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Solution

The fourth proportional to 27,705.92, 41,558.88 and 6,929.42 is: 10,394.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,705.92 : 41,558.88 = 6,929.42 : x
  2. Step 2: Convert to fraction form
    27,705.92/41,558.88 = 6,929.42/x
  3. Step 3: Cross multiply
    27,705.92x = 41,558.88 × 6,929.42
  4. Step 4: Simplify right side
    27,705.92x = 287,978,934.25
  5. Step 5: Solve for x
    x = 287,978,934.25/27,705.92
  6. Step 6: Final answer
    x = 10,394.13

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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.