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Finding the Fourth Proportional to 2,563.65, 3,845.27 and 714.62

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Solution

The fourth proportional to 2,563.65, 3,845.27 and 714.62 is: 1,071.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,563.65 : 3,845.27 = 714.62 : x
  2. Step 2: Convert to fraction form
    2,563.65/3,845.27 = 714.62/x
  3. Step 3: Cross multiply
    2,563.65x = 3,845.27 × 714.62
  4. Step 4: Simplify right side
    2,563.65x = 2,747,918.25
  5. Step 5: Solve for x
    x = 2,747,918.25/2,563.65
  6. Step 6: Final answer
    x = 1,071.88

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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.