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Finding the Fourth Proportional to 2,773.65, 4,160.48 and 2,653.70

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Solution

The fourth proportional to 2,773.65, 4,160.48 and 2,653.70 is: 3,980.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,773.65 : 4,160.48 = 2,653.70 : x
  2. Step 2: Convert to fraction form
    2,773.65/4,160.48 = 2,653.70/x
  3. Step 3: Cross multiply
    2,773.65x = 4,160.48 × 2,653.70
  4. Step 4: Simplify right side
    2,773.65x = 11,040,662.91
  5. Step 5: Solve for x
    x = 11,040,662.91/2,773.65
  6. Step 6: Final answer
    x = 3,980.55

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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.