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Finding the Fourth Proportional to 4,486.92, 6,733.88 and 3,109.92

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Solution

The fourth proportional to 4,486.92, 6,733.88 and 3,109.92 is: 4,667.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,486.92 : 6,733.88 = 3,109.92 : x
  2. Step 2: Convert to fraction form
    4,486.92/6,733.88 = 3,109.92/x
  3. Step 3: Cross multiply
    4,486.92x = 6,733.88 × 3,109.92
  4. Step 4: Simplify right side
    4,486.92x = 20,941,828.09
  5. Step 5: Solve for x
    x = 20,941,828.09/4,486.92
  6. Step 6: Final answer
    x = 4,667.31

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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.