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Finding the Fourth Proportional to 2,740.66, 4,116.03 and 1,768.66

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Solution

The fourth proportional to 2,740.66, 4,116.03 and 1,768.66 is: 2,656.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.66 : 4,116.03 = 1,768.66 : x
  2. Step 2: Convert to fraction form
    2,740.66/4,116.03 = 1,768.66/x
  3. Step 3: Cross multiply
    2,740.66x = 4,116.03 × 1,768.66
  4. Step 4: Simplify right side
    2,740.66x = 7,279,857.62
  5. Step 5: Solve for x
    x = 7,279,857.62/2,740.66
  6. Step 6: Final answer
    x = 2,656.24

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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.