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Finding the Fourth Proportional to 7,763.90, 11,642.27 and 2,497.94

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Solution

The fourth proportional to 7,763.90, 11,642.27 and 2,497.94 is: 3,745.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,763.90 : 11,642.27 = 2,497.94 : x
  2. Step 2: Convert to fraction form
    7,763.90/11,642.27 = 2,497.94/x
  3. Step 3: Cross multiply
    7,763.90x = 11,642.27 × 2,497.94
  4. Step 4: Simplify right side
    7,763.90x = 29,081,621.22
  5. Step 5: Solve for x
    x = 29,081,621.22/7,763.90
  6. Step 6: Final answer
    x = 3,745.75

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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.