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Finding the Fourth Proportional to 2,996.66, 4,494.98 and 805.38

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Solution

The fourth proportional to 2,996.66, 4,494.98 and 805.38 is: 1,208.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,996.66 : 4,494.98 = 805.38 : x
  2. Step 2: Convert to fraction form
    2,996.66/4,494.98 = 805.38/x
  3. Step 3: Cross multiply
    2,996.66x = 4,494.98 × 805.38
  4. Step 4: Simplify right side
    2,996.66x = 3,620,185.86
  5. Step 5: Solve for x
    x = 3,620,185.86/2,996.66
  6. Step 6: Final answer
    x = 1,208.08

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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.